The basic concept is to offer guitarists/musicians a platform where they can play backing tracks on their iphone/ipod for the sake of jamming along. The app would consist of a free platform with a pre installed free backing track, if users then want more tracks they can preview and download additional tracks directly from the app. The app is quite simple we need it to support; - audio tracks, downloaded and stored -audio play back -track selection ( there will be a few versions of each track -an in built guitar tuner ( simular to all the free ones currently available) Obviously there are lots of additions but this is the basic concept. Keywords: iPhone, Android