From GameBrew - a wiki dedicated to Video Game Homebrew.
SoundCells is an experimental synth, aimed to be a real DS instrument.
SoundCells was designed to be played with the user holding the DS with its screen facing outwards.
- In its normal mode, SoundCells presents two octaves-full of "natural" notes to the user.
- There are only a limited number of tones, and they eventually loop.
- SoundCells only permits playing one live note at a time. It has 3 recordable "tracks". Record an accompaniment, and then jam along with it!
- One technique is to slide the point of contact up and down between octaves to obtain a kind of "mandolin" sound. It is also particularly good for trills.
Bagpipe mode: start a drone sound like you'd get on a bagpipe.
Double-your-octaves mode: subdivide each octave row into two more octaves.
Stylus or guitar pick - play
R+note - access Sharps
Up/Down - change tone
L - activate Bagpipe mode
Select - activate Double-your-octaves mode
Y - record tracks (as ABX)
A/B/X - play recorded track
Hint: It is possible to play back several recorded tracks at once by holding several track buttons down. But you can only record to one track at a time.
HyperHacker for his clear post explaining how to use sound generators (http://forum.gbadev.org/viewtopic.php?t=11523).
The DSDev folks for the libraries.