LSDJ

Little
Sound
Disk
Jockey

This is an insturment used that basically is a Nintendo's Gameboy sound chip.The sequencer of Little Sound Dj has a very open structure. It was designed to leave all the musical possibilities of the Gameboy in the hands of the user. The system can be said to be both simple and complex; it has a slight learning curve, but when learned, it is possible to transcribe a complete Bach piece to it on less than one hour.
The Gameboy sound chip offers four channels with 4-bit sound. Custom waveforms can be created by free-hand drawing, or by using a subtractive synthesizer with resonant filters. For extra versatility, Little Sound Dj also contains a quite powerful arpeggiator, which possibilities go far beyond the classic C64-style chords.
Sample-wise, Little Sound Dj boasts a set of 59 phonems for programmable speech. Besides that, it also features drum kits sampled from machines TR-606, TR-707, TR-727, TR-808, TR-909, CR-78, CR-8000, KR-55, DR-55, DR-110, DMX, Drumulator, RhythmAce, TOM and LinnDrum.
The LSDJ has many eletro-pop musicians up and writing fun little gameboy songs.