From GameBrew - a wiki dedicated to Video Game Homebrew.
NDS drum machine, synth and sequencer, intended for live performance. It was previously called BEATPAD.
It is made with devkitpro.org and palib.info developer tools. Source code (GPL) – requires devkitpro r20, libdsmi, most recent palib + some minor tweaks to get it to compile against r20.
Download and extract file.
DLDI patch .nds file and copy it to the root directory of the card.
Default sounds are provided, but can be replace by 16 bit 11kHz-32kHz mono wave files named bd.wav, sn.wav, hh.wav, xx.wav, yy.wav, zz.wav. keep samples small for best performance.
Select/Start - Stop, Start
Stylus - Fire beats
D-Pad - Control sequencer
Tempo doesn’t stay synced, need to disconnect audio from video refresh.
Tap tempo is a bit weird.
Maximum of 15 files in file dialogs.
Bad wav files can crash bliptracker.