Gamelan Mecanique (Review) http://www.citedelamusique.fr/gamelan/shock.html This is a fantastic interactive website. As most schools own have access to gamelan instruments, this site gives students a realistic exposure to the configuration and sound of a Gong Kebyar ensemble.
Each note can be clicked (or touched when using an interactive whiteboard) and the note will sound. Click play and the full ensemble will perform. You can turn each instrument on or off or solo an instrument so you can hear and analyse what it is doing.