TableHooters - my instrument hacks and collection

Here you can read about some specimens of my collection of more or less circuit- bent musical instruments, their most interesting features, what I found out about their hardware and which eastereggs I discovered.
 
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Main purpose of my collection is to explore the domain of the unheard. But I also want to clear up with this site about the bizarre world of tablehooters, because unlike with expensive synthesizers and most professional instruments, the world of small home keyboards and electronic sound toys was yet still a blind spot of the internet since yet nobody else had ever systematically analyzed and catalogued which instruments exist, which sounds they make and how they technically function. E.g. it is still not commonly known that many old instrument employ digital squarewave sound generators those behaviour and timbre differs significantly (see here) from what standard theories of analogue synthesizers tell about square wave tones.

With my collection I am not interested in collecting multiple case variants of technically identical instruments, nor need mine to be in perfect mint condition. I also do not collect overly expensive and professional things (like Roland TB303 or Minimoog) - not only by financial reasons but also because things with high collectors prices have already become well known establishment stuff while I want to explore and document particularly the domain of unknown electronic instruments those have no huge fan scene yet and thus don't appear in every common pop song today - and this despite many of them have great potential to set the sound for future musics.

note: I am not one of these wealthy snobs with big money. Despite my fairly large collection I neither own nor pay much money for my instruments (thus do not attempt to sell expensive things to me). All these instruments were gathered over years; monthly I spend not more money than other people for new CDs or videogames (perhaps roughly about 40..60€), and because I neither waste money for drugs (alc, tobacco, whatever) nor own a brain fryer (mobile phone) nor a petrol stinker (automobile), the limit of my keyboard collection is rather space than money. I am mainly watching eBay for forgotten, poorly described or broken items, thus often the postage is higher than the sales price. Only for very few items (mainly synthesizers) I paid over 50€, while most keyboards went far below 20€ and some I even got for 1€ by the lack of other bidders.

Nowadays I think that I have almost completed the task of collecting and documenting one specimen of every existing hardware class of classic small and midsize keyboards from roughly 1980 to 2000. Although I also buy cheap modern sound toys and beginners keyboards when they are interesting, as well their variety of unique sounds as the speed of innovation has strongly decreased, thus the collection will certainly grow much slower in future. (I e.g. don't even try to collect the hundreds of very similar My Music Center hardware variants, because most only differ in the selection of demo melodies and their very similar preset sounds. And I barely care about too new keyboards with flash based powerful microcontroller that self-destructs if shitshot, and those artificially limited functions got rather defined by advertising department than chip capabilities. But I do have plenty of yet undescribed Yongmei- and Medeli- grade keyboards.)

In the following texts "keys" always mean piano keys; those on the control panel I refer "buttons". Functions those can always be selected by the same single button press (important for live performance of tekkno etc.) are marked with "OBS" (one button select). As far not mentioned otherwise, the digital part of all these instruments is based on a single chip (here often called "CPU") and there are neither MIDI nor velocity sensitive keys. With "shiftregister noise" I mean a shift register feedback circuit (a pseudo random number generator which outputs a more or less long, but repeating bit sequence to approximate white noise). I refer an instrument "digital" when sound generation and envelopes are digital, i.e. no envelope capacitors and no controllable analogue filters are present. I call it "analogue" when it contains any mainly analoguely generated or significantly this way post- processed (e.g. differently filtered) main voice sounds. They usually still contain DCO (digital oscillators), since VCO are extremely uncommon in polyphonic home instruments.
 

legend:
= nice or unusual sound
= exceptional great sound
= very unusual hardware
= circuit bent (sound modified)
= much circuit bent 
= extremely circuit bent
= constructed by myself

In the following all instruments are sorted by the sound generation technology they mainly use.

music keyboards:

A "keyboard" means to me an instrument that has sharp ("black") and natural keys those permit to play music at least with all 12 notes per octave (like a piano) and that has more than 1 octave. A thing that has no sharps or only 1 octave I usually classify as "sound toy" unless it is despite particularly well suited to play melodies on it.

note: I initially had messed up the sorting by types of sound hardware very badly. Particularly Casio squarewave and stairwave instruments were mostly nonsense, because I did too much by ear instead of oscilloscope. I hope I have fixed these now, but with some other instruments the categories still may be wrong

The sorting is not alphabetic, so use your browser's "find" or search engines for particular models. I sort mostly in categories by hardware similarity - with brandless models brand names are rather meaningless. So I group these only for major brands (Casio, Yamaha etc.) where useful. "italo" stands for certain classic Italian brands (Bontempi, Farfisa, Antonelli etc. - likely more or less made by SIEL) those are technically similar; many sound awesome, but some early digital mini keyboards were absurdly bad. "chinaware" names the category of ultra-cheap Yongmei-grade Chinese trash tablehooters (quality far below Medeli), those are often poorly playable (e.g. polyphony bugs), but never the less can sound interesting. Big ones often quickly became ultra-rare because their fragile plastic shatters like porcelain (also nicknamed ming vase keyboards). A particularly interesting company of these is Potex, those made (despite many flaws) amazing tekkno toy instruments with lovely stylish case design.

Jörgensen Clavioline
- historical tube synth keyboard, great electro bass noises (with repair tips)
updated
2025-12-15
Dübreq - Stylophone 350S
- stylus operated simple synth with light sensor and VCF
new
2025-12-15
chinaware
Golden Camel 7A
- absurd tooting tablehooters (with schematics) | general Yongmei info
[transistor tooter hardware]
updated
2025-12-15
Kamichi XH-210 etc. (Yongmei, Miles)
italo
Antonelli - Star 2379
- organ keyboard with unusual polyphonic accompaniment, analogue rhythm
updated
2005-04-26
others
Jörgensen Electronic - Tuttivox
- antique portable tube organ
updated
2025-12-15
Kamosonic KB-1000
- full polyphonic midsize tablehooter with analogue rhythm
new
2025-12-15
Ramasio 892
- small midsize(!) full polyphonic keyboard, great polyphonic accompaniment
updated
2025-12-15
Jiaying Z4941
- full polyphonic analogue keyboard with nice accompaniment
new
2025-12-15
Sankei Entertainer TCH-8800
- compact stereo set with warm analogue organ & rhythm
new
2025-12-15
Yamaha
Yamaha PS-2
- first PortaSound, unusual percussion
updated
2025-12-15
PS-3
PS-1
Yamaha PS-30
- filter envelope sounds & layering, nice arpeggio accompaniment, unusual percussion
updated
2025-12-15
PS-20
Antonelli 2495
- unusual, versatile accompaniment, arpeggio, analogue rhythm, MIDI
updated
2025-12-15
Antonelli 2614 Stereo
- analogue rhythm, great versatile accompaniment & MIDI
new
2025-12-15
Bontempi HT 313.10
- short keyboard with home organ sound & accompaniment
updated
2025-12-15
Bontempi - Minstrel Beta
- nice arpeggio accompaniment
updated
2025-12-15
Bontempi - MRS52/D
- cute warm home organ sound, analogue rhythm, nice accompaniment
updated
2025-12-15
Squarewave means that the timbres are mainly made from the square waveform (with or without envelope), which is the simplest electronic basic waveform (see here). This permits e.g. to re-create the unique electronic sound style known from historical videogames and homecomputers. I call an instrument "squarewave" when the waveform is not only processed internally (which is done in most analogue instruments), but also well audible as characteristic timbre.
italo
Antonelli 2381
- cute accompaniment & arpeggios, analogue rhythm, sonorous timbres, serial port
updated
2025-12-15
Madison OK 500
- VCF, programmable analogue rhythm, great versatile accompaniment & MIDI
new
2025-12-15
others
HBATEC
- bizarre sound, programmable analogue rhythm
updated
2025-12-15
Fujitone 3-A
- bizarre sound, programmable analogue rhythm
updated
2025-12-15
Angeltone DM-380
Karcher F2, Angeltone DM-100
- no rhythm
Elta KE-3
- accompaniment but no rhythm, bizarre sound
updated
2025-12-15
Angeltone DM-200
(Medeli) Pan Toys MC-7
- very minimalistic sounds, programmable analogue rhythm
[MC-2 hardware]
updated
2025-12-15
TrendLine MC 3700
Fujiyama KS-37
(Medeli) Elite MC2200
- many accompaniments, many melodies, programmable rhythm
updated
2025-12-15
(Medeli) Bontempi ES3000
- mini keyboard with drumpads & cheesy accompaniment
updated
2025-12-15
Thompsonic TS-37
Creatoy 4207
- simple squarewave keyboard with great POKEY rhythm
updated
2025-12-15
Hing Hon EK-002
- bizarre distorting sound & great blip percussion
updated
2006-06-07
Societé Europro 31646
EuroPlay - Fix und Foxi Musikband
- absurd blip rhythm
updated
2025-12-15
Music Band
Fujitone 1
- simple squarewave keyboard
updated
2004-01-25
Medeli MC-11
- simple squarewave keyboard
updated
2003-11-08
Superb Sound EK-922
- precursor of MC-2 hardware? (broken)
updated
2025-12-15
Bontempi HF222.21 (HF222)
- organ keyboard with bassy analogue percussion & accompaniment
updated
2025-12-15
Yamaha
Yamaha PSS-30
- nice blip percussion
updated
2025-12-15
PSS-130
italo
Bontempi Basic BK32
- simple polyphonic squarewave mini keyboard
updated
2006-06-07
Bontempi M40
- simple polyphonic squarewave organ keyboard
updated
2006-06-07
Bontempi - Concertino 25S
- polyphonic mini keyboard without rhythm
updated
2025-12-15
Concertino 25S 
Barbie Concertino 25 
Concertino C25/N
others
Elite - Little Musicmaster
- bizarre Casio VL-Tone imitation
updated
2004-01-25
Mattel - BeeGees Rhythm Machine
- monophonic toy keyboard with melodic POKEY rhythms
new
2025-12-15
Yeno - Der kleine Musikant
- very strong zipper noise, unusual analogue percussion
updated
2025-12-15
Casio
Casio VL-Tone VL-1
- first cheap mini synthesizer, blip rhythm
[VL-1 hardware]
updated
2025-12-15
VL-10
VL-80, PT-1, CK-10, EP-10
- no synth
Casio PT-30
- unusual analogue percussion, tape storage cartridge TA-1
updated
2025-12-15
PT-20
 - no TA-1
Casio PT-50
- first ROM-Pack keyboard, RAM-Pack- sequencer, analogue percussion, unusual accompaniment
updated
2025-12-15
Casio PT-80
- key lighting, ROM-Pack, unusual analogue percussion
updated
2025-12-15
MT-18
Casio PT-82
- key lighting, ROM-Pack
updated
2025-12-15
PT-87
EP-20
Casio KX-101
- keyboard- boombox with analogue rhythm, accompaniment & complex sequencer
updated
2025-12-15
Yamaha
Yamaha PSS-20
- monophonic with nice blip percussion & arpeggio mode
updated
2025-12-15
Yamaha PSS-80
- simple synthesizer, blip rhythm & accompaniment
updated
2025-12-15
Yamaha PSS-100
- simple synth with great C64 sounds, blip rhythm & accompaniment
updated
2025-12-15
Yamaha TYU-30 Fun-Keyboard
- key lighting with music cartridge
updated
2025-12-15
TYU-40
others
Hing Hon EK-001
- great sonorous multipulse timbres, impulsive POKEY percussion
[EK-001 hardware]
updated
2025-12-15
Crowntone MT-5560
MeiKe MK-320B
Yongmei MS-110A
Stereophonic EK-900
Superb Sound EK-210
Yongmei MS-210B
- great sonorous multipulse timbres, impulsive POKEY percussion
updated
2025-12-15
Playskool - Kid Keys PS-635
- multipulse timbres, POKEY rhythms
updated
2025-12-15
Video Technology - Rhythmic 10
- realtime programmable analogue rhythm, simple synth
updated
2007-04-12
chinaware
Simba - My Music World 683 3149
- monophonic with POKEY scale, cheesy sound & fat lo-fi tekkno rhythm
updated
2025-12-15
Casio
Casio PT-7
- polyphonic mini softtouch keyboard, sonorous bass, analogue rhythm
[MT-11 hardware]
updated
2025-12-15
MT-21
Casio MT-45
- great accompaniment, nice sonorous bass, analogue rhythm
updated
2025-12-15
Casio MT-36
- plain sound, unusual semi-analogue percussion
updated
2025-12-15
MT-200
- with computer interface PA-1
MT-90
CT-102
Yamaha
Yamaha HandySound HS-200
- polyphonic mini keyboard
updated
2025-12-15
Yamaha HandySound HS-500
- polyphonic mini keyboard with audiogames
updated
2025-12-15
Yamaha HandySound HS-501
- polyphonic mini keyboard with audiogames
new
2025-12-15
Yamaha PCS-30
- Playcard slot & key lighting
updated
2025-12-15
Yamaha PSS-150
- realtime programmable blip rhythm
updated
2025-12-15
Yamaha PSS-160
- accompaniment, unusual OBS realtime sliders
updated
2025-12-15
Yamaha PSS-110
- with rhythm, voice & animal samples
updated
2025-12-15
others
Video Technology - Rhythmic 2
- with analogue rhythm
updated
2025-12-15
Video Technology - Rhythmic 8
- programmable analogue rhythm, pitch bend & simple synth
new
2025-12-15
(Medeli) Letron MC-3
- C64 sound, nice user interface, programmable blip rhythm
[MC-3 hardware]
updated
2025-12-15
Kawasaki 5A
(Medeli) Letron MC-38
- complex C64 sounds, programmable blip rhythm, many melodies
updated
2025-12-15
(Medeli) Thompsonic TS-33
- great MC-3 successor with simple synth, 8 note polyphony, great accompaniment
updated
2025-12-15
(Medeli) First RAP-2
- strange Casio Rapman knock-off 
new
2025-12-15
Penrod AJ-430
- single-chip MC-3 clone with unusual great accompaniment
updated
2025-12-15
(Medeli) Pan Toys MC-73
- with fewer and thinner MC-3 sounds
updated
2025-12-15
Testron CL-60910
- great accompaniment
updated
2025-12-15
Elta KE-4
Elta KE-6
- nice accompaniment, programmable blip rhythm
updated
2025-12-15
chinaware
ABA-88
- squarewave keyboard with strange accompaniment & analogue rhythm
updated
2025-12-15
Talu LS-18
- absurdly broken glitch accompaniment
Bestar MC 3300
- programmable polyrhythm & faulty accompaniment
new
2025-12-15
Casio
Casio VL-Tone VL-5
- barcode pen, simple stairwave, unusual blip percussion
updated
2025-12-15
Casiotone 201
- world first Casio keyboard, unusual sounds
[CT-201 hardware]
updated
2025-12-15
Casiotone 202
- successor of Casiotone 201
updated
2025-12-15
Casiotone 401
- world first Casio keyboard with automatic accompaniment & rhythm
updated
2025-12-15
Casiotone M-10
- simple semi-analogue mini-keyboard
new
2025-12-15
Casio MT-30
- unusual sounds
updated
2025-12-15
MT-40
 - analogue rhythm + bass
Casio MT-60
- great POKEY-like timbres, analogue rhythm
updated
2025-12-15
Casio CT-410V (MT-400V)
- fantastic analogue synth with genuine resonance VCF & complex accompaniment
[MT-65 hardware]
updated
2025-12-15
Casio MT-800
- first polyphonic ROM-Pack keyboard, key lighting, analogue rhythm
updated
2025-12-15
MT-85
CT-810
Casio MT-52
- semi-analogue rhythm & Super Drums accompaniment
updated
2025-12-15
Casio MT-210
- warm timbres, sample percussion & versatile accompaniment
new
2025-12-15
Casio MT-500
- warm timbres, sample percussion, drumpads & Super Drums accompaniment
updated
2025-12-15
Casio MT-520
- warm timbres, sample percussion, drumpads & versatile Super Drums accompaniment
updated
2025-12-15
Casiotone 7000
- long keyboard with many stereo effects, complex sequencer, analogue rhythm
new
2025-12-15
Casio Symphonytron 8000
- modular stage organ prototype
new
2025-12-15
(CT-8000 + FK-1 + RC-1 + MB-1 + RA-2)
Casio MT-88
- ROM-Pack, key lighting, analogue rhythm
[MT-88/PT-100 hardware]
updated
2025-12-15
CT-805
PT-100
- great tekkno blip percussion, nice sonorous bass, no ROM-Pack
MT-28
PT-180
- blip percussion, ROM-Pack
Casio CT-6000
- first Casio keyboard with velocity, pitchbend & midi
new
2025-12-15
Hohner KS 49 midi (Casio HT-700)
- SD synthesizer with analogue filter & realtime programmable accompaniment
[HT-3000 hardware]
updated
2025-12-15
Casio HZ-600
Casio HT-6000
- SD synthesizer with velocity, midi & complex sequencer
new
2025-12-15
Casio
Casiotone 1000P
- additive synthesizer with programmable arpeggiator
new
2025-12-15
Casio MT-70
digital dual sinewave sound, key lighting with barcode pen, analogue rhythm
updated
2025-12-15
Casio AT-40
- midsize oriental keyboard with sinewave sound
new
2025-12-15
italo
Bontempi ES 3300
- sick yelling digital sound bank, absurdly crappy lo-fi rhythms
updated
2025-12-15
KS 3400
Bontempi KS 4600
- lousy wannabe sound bank, lo-fi sample percussion
updated
2025-12-15
KS 4400
Casio
Casio CZ-230S
- phase distortion FM keyboard with 100 sounds, MIDI & sample based drum computer
updated
2025-12-15
Yamaha
Yamaha PSS-16
- beginners keyboard with accompaniment & demos
updated
2025-12-15
Yamaha PSS-140
- FM percussion, many strange tekkno sounds
updated
2025-12-15
Yamaha PSS-390
- FM synth with great sliders, many strange tekkno sounds
updated
2025-12-15
Yamaha PSS-780
- most professional PortaSound synth, complex sequencer, MIDI
updated
2025-12-15
Yamaha SHS-10
- MIDI keytar, versatile accompaniments
updated
2025-12-15
italo
Bontempi B10
- simple mini keyboard with beep rhythm
new
2025-12-15
Bontempi B20
- gritty digital lo-fi sounds, realtime programmable rhythm
new
2025-12-15
Bontempi B30
- gritty digital lo-fi sounds, realtime programmable rhythm
updated
2025-12-15
Bontempi B40
- gritty digital lo-fi sounds
updated
2025-12-15
Bontempi B50
- gritty digital lo-fi sounds (with schematics)
updated
2025-12-15
Bontempi Confetti Kla4
- gritty digital lo-fi sounds
updated
2025-12-15
others
Arton IK-51
- bizarre Soviet Russian digital midi keyboard prototype
new
2025-12-15
(Medeli) GPM MC-5000
- programmable rhythm, FM percussion, good bass & accompaniment
updated
2025-12-15
(Medeli) Fujitone 6A
- good bass, many strange tekkno sounds, FM percussion
[MC-6, MC-6A, MC-6B hardware]
updated
2025-12-15
Kaysound MC-6A
- different FM sound engine & demo
(Medeli) Letron MC-103
- FM keyboard with simple synth & programmable rhythm
new
2025-12-15
(Medeli) Elta KE-10
- warm sound, realtime programmable FM rhythm
updated
2025-12-15
Bestar MC 3800
- sample drumpads, FM rhythm, many strange tekkno sounds, unusual accompaniment
updated
2025-12-15
Majestic EK-660
- interesting sound glitches & realtime programmable rhythm
updated
2005-04-26
Superb Sound EK-905
- bizarre trashy lo-fi tekkno sounds
updated
2025-12-15
EK-470
Leetone PF-50
- lo-fi FM keyboard with strange tekkno sounds & MIDI out
new
2025-12-15
Terratec - MidiMaster TMM1
- midi controller keyboard with speakers but no sound
italo
Bontempi ES 3200/M
- blip rhythms like Casio VL-1, great tekkno eastereggs
[ES3200 hardware]
updated
2025-12-15
ES 3100/M
ES 3100
M325
Antonelli DEK-2350
chinaware
Miles - Golden Camel-11AB
- grainy monophonic timbres, sample percussion, many demos
updated
2025-12-15
Yongmei YM-3300
- toxic smell, great distorted rock organ timbres, programmable rhythm
updated
2025-12-15
Yamaha
Yamaha MK-100
- lovely e-organ sounds, layer functions, complex music & drum sequencer, blip percussion
updated
2025-12-15
Yamaha PC-100
- first key lighting keyboard, Playcard, blip percussion
updated
2025-12-15
MP-1
- keyboard with musical score printer
Yamaha PCS-500
- Playcard keyboard with lid & key lighting
new 2006-06-07
Yamaha PSS-260
- programmable blip rhythm, unusual OBS realtime sliders
updated
2025-12-15
italo
Bontempi BS 2010
- simple lo-fi synthesizer with bizarre howling sounds
[BS3000 hardware]
updated
2025-12-15
KE 3860
BS 3000
BS 2000
Bontempi Concertino 32 / 32S
- nice digital synth sounds, simple blip rhythm
updated
2025-12-15
Bontempi ET 202
- nice digital synth sounds, trancey arpeggio accompaniment
updated
2025-12-15
others
Amstrad Fidelity CKX100
- lovely pop organ sounds, great demos & MIDI
updated
2025-12-15
chinaware
(Potex) Cyber Keyboard
- noble case design, ethereal chorus timbres, tekkno percussion
updated
2025-12-15
(Potex) Super Jam
- warm sounding My Music Center successor with 128 great chorus sounds
updated
2025-12-15
Medeli MC-32
- ethereal chorus timbres, programmable rhythm & drumpads, effect samples, many great melodies
updated
2025-12-15
Elta KE-491
- simple synthesizer with My Music Center sound, programmable rhythm & MIDI out
updated
2025-12-15
chinaware
Mega - My Music Center
- ethereal chorus timbres, animal samples
[My Music Center hardware]
updated
2025-12-15
Superb Sound EK-91DX
Electronic Musical Keyboard 98289
RJP - Dynamic Keyboard MU-7986
Alaron - My Song Maker
- longer & bugfixed My Music Center successor
updated
2025-12-15
Miles 3738
Musical Centre
- ethereal chorus timbres, wonderful square vibrato sounds
updated
2025-12-15
Sunlight - Music Playkeys
- My Music Center predecessor?
updated
2025-12-15
Chicco - Sing 'n' Dance Orchestra
- pretty toy keyboard with key lighting, nice tekkno sounds & demos (with schematics)
new
2004-04-04
Elta - Kid Line Keyboard (Elta 922)
- bugfixed My Music Center with key lighting
updated
2004-08-27
Feng Yuan 28061
- ethereal chorus timbres, programmable rhythm
updated
2025-12-15
Jin Xin Toys JX-20165
- ethereal chorus timbres, 36 sounds & programmable rhythm (My Song Maker successor)
updated
2025-12-15
Simba Elecking - My Party Piano (HP-29)
- lofi toy keyboard with accompaniment, glitchy pitchbend & nice demos
new
2025-12-15
Miles MLS-4900A
- toxic smelling My Music Center successor, programmable rhythm & cheesy accompaniment
updated
2025-12-15
Toy Quest - Groovy Beat
Music Fun - Melody Keyboard (Sun Ta Toys SDN BHD 1996)
- My Music Center variant in Casio KA-20 case, many demos
updated
2025-12-15
MusicZone Keyboard
- creaky vibrato timbres, squarewave accompaniment, drum kit mode, nice demos
updated
2025-12-15
Play 'n' Jam
- toxic smelling toy keyboard, nice LCD animations & rhythms, wonderful demos
new
2004-04-04
Sankai 01870K
- noble My Music Center successor, 49 keys, many Asian/ Oriental demos (with schematics)
updated
2025-12-15
SongMax HMP-138
- LED light effects, semi- realistic samples, nice demos
updated
2005-04-26
Steepletone SEK-929
- ethereal chorus timbres, effect samples, many demos
updated
2025-12-15
Yongmei YM-238C
- My Music Center variant with key lighting, many nice demos & programmable rhythm
updated
2025-12-15
Yongmei YM-2100
- great fullsize hifi(!) My Music Center successor, programmable rhythm & nice accompaniment
updated
2025-12-15
Casio
Casio SK-1
- first cheap lo-fi sampler, drawbar synth, unique blip percussion
updated
2025-12-15
Casio SK-8
- lo-fi sampler with ROM-Pack & key lighting, upgraded as oriental keyboard!
updated
2025-12-15
SK-5
- no ROM-Pack
PT-280
Casio SK-10
- simple lo-fi sampler with blip percussion
new
2025-12-15
Casio SK-2100
- big lo-fi sampler with additional stairwave sound & accompaniment
[SK-200 hardware]
new
2025-12-15
SK-200
SK-100
Hohner PK60
Yamaha
Yamaha TYU-20 Fun-Keyboard
- monophonic with do-re-mi sample voice, squarewave & demos
new
2025-12-15
italo
Bontempi B310
- simple mini keyboard with grainy digital lo-fi sounds
new
2025-12-15
others
(Medeli) First Austria MC-36/ KB 4588 (Casio MA-150/ MA-170)
- poor digital lo-fi sound, many nice demos, play teaching & MIDI- out
[MC-36 hardware]
updated
2025-12-15
Music Time - Keyboard 270
Blue Man Group - Keyboard Experience
- very stylish boring toy keyboard with gesture control & nice demos
new
2025-12-15
Sankai 01504H
- lo-fi effects, programmable rhythm, accompaniment, nice demos
updated
2007-04-12
K-Mark WP9019A1
- 49 polyphonic mini keys, unusual sound, programmable rhythm, accompaniment
updated
2025-12-15
Quelle 496.996 0
- 49 polyphonic mini keys, digital lo-fi sound & lovely demos
updated
2025-12-15
Yongmei YM-6700
- toxic smell, realtime programmable rhythm, trashy orchestrion accompaniment
updated
2007-04-12
chinaware
Animal Keyboard
- interesting rhythms & demos
updated
2025-12-15
Stereo Playkeys!
- great demo melodies, nice rhythm
updated
2025-12-15
Beat Square - Mix Evolution (Potex Ultra-Mixer)
- impressive toy DJ console with working scratch disc, voice changer, keyboard & many nice tekkno samples
updated
2025-12-15
(Potex) Kid's Com - Mix Me DJ
- toy DJ groovebox with many tekkno effect samples, keyboard, scratch disc & rhythms
updated
2025-12-15
Lolli Pop - DJ Mixer
- toy groovebox with sampler, touch sensors, many effect samples & rhythms
new
2025-12-15
Jin Xin Toys - Ultra-Mixer (J.X.T 20808)
- toy DJ keyboard with many effect samples, scratch disc & rhythms
new
2025-12-15
(Potex) Light Mixer
- tekkno toy keyboard with light sequencer, many effect samples & rhythms
new
2025-12-15
(Potex) Kawasaki Pro 37
- noble case design, fat samples of classic rock & nice synth texture timbres
updated
2025-12-15
Rock 'n' Board
- tiny tekkno style toy keyboard with lo-fi samples & tribal rhythm
new
2025-12-15
Sound Mixer HMP-288
- spectacular light effects & key lighting, nice demos, unusual slow vibrato
updated
2025-12-15
Ouda MQ-5418
- lo-fi tablehooter with impulsive percussion & cheesy accompaniment
new
2025-12-15
Yongmei DL-2300
- toxic smell, cute electronic accompaniment, programmable rhythm
updated
2025-12-15
Casio
Casio MT-540
- atmospheric background effect pads, clear percussion & MIDI
updated
2025-12-15
MT-240
- no effect pads
MT-640
- drumpads (not atmospherics), bass speaker
Casio MT-750
- midsize ToneBank MIDI keyboard with simple synth
new
2025-12-15
Casio SA-1
- mini keyboard with complex lo-fi wavetable sounds
[SA-1 hardware, SA-series general info]
updated
2025-12-15
SA-9
SA-20
Casio SA-21
- like SA-1 with drumpads and nice demos
[SA-21 hardware]
updated
2025-12-15
SA-41
SA-8
SA-2
PA-31
KA-20
TA-10
Casio SA-35
- fantastic tekkno trance wavetable patterns, nice demos
[SA-35 hardware]
updated
2025-12-15
SA-5
Casio - Magical Sound Dial SA-40
- toy keyboard with atmosphere effect sounds & bizarre dial controller
updated
2025-12-15
Casio Sound Kids KS-01
- toy keyboard with cards, nice demo
new
2025-12-15
Casio GZ-5
- poor mini keyboard with MIDI-out
updated
2025-12-15
Casio SA-65
- interesting lo-fi wavetable sounds (like SA-1), LCD display, nice demos
updated
2025-12-15
Casio MA-130
- interesting lo-fi wavetable sounds/ percussion (longer SA-1)
updated
2025-12-15
Casio CT-840
- interesting lo-fi wavetable sounds/ percussion, ROM-Pack & key lighting (like fullsize SA-1)
updated
2025-12-15
MA-220
Casio CTK-200
- 40 songbank keyboard with interesting lo-fi wavetable sounds
new
2025-12-15
Casio PT-88
- mini keyboard with ROM-Pack & key lighting (SA-1 sound)
updated
2025-12-15
Casio Sound Kids KS-02
- toy keyboard with ROM-Pack & key lighting
new
2025-12-15
Casio - Magical Light ML-2
- small with real key lighting, lovely demos
updated
2025-12-15
ML-1
Casio Rapman RAP-1
- built-in voice changer
updated
2025-12-15
DJ-1
Casio CT-647
- 40 songbank keyboard with unusual AI accompaniment (Expert Logic)
new
2025-12-15
Casio LK-30
- 100 songbank keyboard with key lighting
new
2025-12-15
Casio SK-60
- nice lo-fi sampler, vocal percussion & -sounds, siren effects, nice demos
updated
2025-12-15
Casio - Voice Arranger VA-10
- built-in voice/ effect processor, pseudo-vocoder
updated
2025-12-15
Casio CTK-1000
- unique IXA synth keyboard with velocity and midi
new
2025-12-15
Yamaha
Yamaha PSS-6
- mini keyboard with clear sound, many lovely demos
updated
2025-12-15
PSS-12
Yamaha PSS-31
- clear sound, many lovely demos
updated
2025-12-15
Yamaha PSS-7
- mini keyboard with unusual granular tekkno sounds
updated
2025-12-15
PSS-14
Kawai
Kawai MS20
- small keyboard, complex music pattern loops (one finger ad-lib), accompaniment, impulsive rhythms
updated
2025-12-15
Kawai MS50
- complex music pattern loops, accompaniment
new
2006-06-07
Kawai MS720
- complex music patterns, simple synth, accompaniment, MIDI
updated
2006-06-07
Kawai - Pop Keyboard PH50
- great movie effect & synth sounds, pitch/ modulation joystick, MIDI
updated
2005-04-26
italo
Bontempi GT 509
- smallest 666 sound System 5 Plus keyboard, lo-fi percussion
updated
2025-12-15
BT 304
Bontempi GT 759
- 666 sound System 5 Plus keyboard with accompaniment, lo-fi percussion
updated
2025-12-15
Bontempi GT 770
- GT 759 successor with warm virtual analogue sounds & accompaniment, lo-fi percussion
updated
2025-12-15
others
Mindscape - The Miracle Piano Teaching System
- velocity sensitive MIDI (non-GM) keyboard for complex piano teaching software, many unusual sounds
updated
2025-12-15
Bontempi B9
- chord organ, pressure sensitive keys
new
2005-04-26
Graber Rogg CTX 1000
- portable chord organ with nice sound, pressure sensitive keys
new
2005-04-26
Nigam bulbul tarang
- string keyboard from India
updated
2003-02-19
Baby Piano
- toy piano with nice sound and astonishing mechanism, velocity sensitive
updated
2025-12-15

sound toys, drum machines & others:

analogue:
GEM Drum15
- drum machine without ICs
SoundMaster - Memory Rhythm SR-88
- ancient drum computer
analogue monophonic:
GoodPlay - Elektronische Orgel
- tiny dual-keyboard toy organ
updated
2005-04-26
analogue squarewave:
Bontempi - Disney Band
- great POKEY tekkno noises
updated
2006-06-07
Electroplay - Sound FX Phasor
- amazing synthesizer soundtoy, world first single-chip softsynth
new
2025-12-15
Tyco HotKeyz
- toy accompaniment keytar with analogue wahwah & C64 rock sound
new
2025-12-15
digital squarewave:
Casio Melody-80 (ML-80)
- first musical calculator - with clock & 3 melodies, rough beep sound
new
2025-12-15
Casio MG-880
- musical calculator with game
new
2025-12-15
Casio ML-81
- musical calculator with clock & 3 melodies
new
2025-12-15
Casio ML-85
Casio ML-88
Casio ML-90
- musical calculator with clock & 12 melodies
new
2025-12-15
Casio ML-8 
Casio ML-78
Casio UC-365
- musical calculator with clock & universal calendar
new
2025-12-15
FM synthesis:
Unisynth XG-1
- electronic pseudo-guitar (with repair tips)
updated
2025-12-15
dual natural waveforms:
SoundWaves - Graduate Jammer Guitar MG-1530
- toy pseudo- guitar with great accompaniment & blip rhythms
updated
2025-12-15
plain samples:
Casio TSA-85 - Space Sonic 8
- alarm clock with SA-series sci-fi synth sounds
new
2025-12-15
Blue Man Group - Percussion Tubes
- very stylish boring toy drum kit with hand gesture control & demos
new
2025-12-15
(Potex) Beat Square - AIR-Dance Mixer
- unique tekkno toy groovebox with hand gesture sensors
updated
2025-12-15
KiK Discobox
stylish electronic toy drum kit with fat lo-fi sound & squarewave 
new
2005-04-26
(Potex) Kid's Com - Cyber Drum Center
- electronic toy drum kit with 30 nicely unusual rhythms
updated
2005-04-26
Simba - My Music World drum kit
- electronic toy drum kit with lo-fi sample rhythms
updated
2005-04-26
GoldTronic - Electronic Air Drums
- electronic toy drum kit
updated
2003-02-19
Mega - Gogo-Train (GT-27)
- toy drum machine
Super Stereo
- toy drum machine
My Portable Rockman
Xin Anda - 8-Melody Letter Study Piano
- weird toy tablehooter with animal sound & alphabet letter samples
updated
2025-12-15
Creatoy - 64 Keys
- touch tablet with great OBS playability, squarewave piano & POKEY rhythms
updated
2003-04-13
animal train sound toy (blue)
SoundBlast
keychain techno sound toys
wavetable:
Casio Rapman RAP-10
- belt-mounted rap groovebox soundtoy
new
2025-12-15
Casio TSA-90 - Sound Maker
- alarm clock with SA-series accompaniments
new
2025-12-15
Azan Clock
- howling robotic muezzin voice
updated
2025-12-15
My First Sony - Cassette-Corder
- toy cassette recorder with 6 drumpads & animal samples
updated
2025-12-15
My First Sony - Sound Pad SOP-1000
- toy drum machine with effect samples
updated
2025-12-15
Casio TA-1000
- talking calculator with multi-alarm clock
new
2025-12-15
Hartung - Das Tierische Eisenbahn-Piano
- yellow animal train sound toy with graunular sounds
Texas Instruments - Magic Melody / Der singende Spielball
- singing female robot voice
Tomy - The Incredible VoiceChanger
- vocoder-like sound toy

instruments created by me:

Jyotiophon
- optical theremin from year 2034
Tekknetion prototype 1
- live performance sampling instrument

Beside the ones I listed here, I also own various other electronic instruments (mainly modern sound bank keyboards, sound toys and many toy laptops) I yet found no time to write about. Thus I gave priority to describing the most unusual sounding and least documented hardware families - mainly focussing on the realm of squarewave and stairwave. Although I am also interested in historical videogames and pinball, I made this site about small tablehooters because while those games are already well researched and documented on the internet, toy instruments and beginners keyboards were an almost a blind spot (and thus ignored by most musicians) despite many have interesting sounds those differ much from the establishment stuff found on professional instruments. Even pocket calculator hardware was documented much better than household keyboards, so I decided to write this taxonomy by collecting and examining specimen of most existing hardware classes.
 

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