IMMEDIATE MUSICIAN’S USABILITY. What’s different about this App is that it makes it feasible for the average guy, with very little effort, to play their songs to very engaging arranged rhythm tracks. I’ve tried lots of them and I haven’t come across any other app that comes close to that. This app combines a musician’s player, a setlist manager and an arranger in the one app. It’s really quick to select arrangements and then you can put them into setlists and keep changing and reordering the lists as your set evolves. Now I just grab my sax’ and my mobile phone and either play a setlist or quickly search and find tracks as I go through my books of lead sheets. If I don’t have a track for a tune, a minute later I will have and will probably be playing it. For me, there’s nothing else that has this sort of immediate musician’s usability.