“Andrea Bianchi, a Ph.D. student at the Graduate School of Culture Technology (GSCT) in the Korean Advanced Institute of Science and Technology (KAIST), South Korea, wrote in to report about a homebrew music application named Drummer for the Nintendo DS which was presented at the NIME 2009 conference (New Interfaces for Musical Expression).
‘It is basically a collaborative musical instrument, where multiple Nintendo DS users can play individually on their devices in order to collaborate on a track. Tracks can be recorded simultaneously, one per user. The project tries to bridge mobile interfaces with collaborative music instruments (usually constrained by the need of physical proximity among players), in order to create a collaborative instrument for the stage.’
The system is based on client-server architecture over a wireless network; every client runs on a Nintendo DS -one of the most popular wireless handheld game devices with touch-screen functionality- while the server computer handles the clients’ requests and plays matching drum sounds with the software synthesizer.
Each user can take advantage of this small and intuitive pen-based device in order to create or customize a drum kit, and then perform together with other users simply by tapping and sliding the pen on the screen.”
Note that the source code and NIME 09 paper are both available on their website.