Set has been released today, it costs only $5.55 US.
Here's a photo of the beast:

The MC-3A electronic keyboard is a digital square wave instrument. I don't know exactly how
old it is but my guess is that it's roughly 20 years old. It has 12 chromatic sounds:
01- Piano
02- Saxophone
03- Pipe Organ
04- Guitar
05- Trumpet
06- Violin
07- Harpsichord
08- Jazz Organ
09- Synth
10- Cowbell
11- Oboe
12- Clarinet
There's a vibrato button that has no settings, it's either on or off. I've sampled the sounds with and without vibrato. Additionally, it has rhythm styles, a bass and 5 percussion sounds: kick, conga, snare, cymbal and hi-hat. The bass and percussions are included in the set but not the rhythm styles (at least for now). All these do not sound like the acoustic instruments they're named after but more like the Sid chip, 80's and early 90's video games. Very good retro sounds for chip music (or chiptune).
Visit this page to get the downloadable demo and more MP3s:
http://lesproductionszvon.com/MC3A.html
The demo has 3 programs of the 26 programs: cowbell vibrato, oboe natural and vibrato.
