Wikipedia
Traxxpad
Traxxpad is a music application for Sony's PlayStation Portable developed by Definitive Studios and published by Eidos Interactive. It was released June 26, 2007. Traxxpad is a portable music studio featuring a sequencer, drum machine, and keyboard for the creation of music tracks. It features a library of over 1000 sound samples for use, and allows users to record their own samples using a microphone for the PSP.