Looking forward to this new set of apps from Studio Amplify. NOiZE lets you use up to 10 iOS devices together as a ‘digital band’. You customize the sounds, effects, key, tempo and groove of a song and then share it with multiple iOS devices. This means that anyone should be able to use it not play any ‘wrong notes’, while more experienced musicians should be able to play it more expressively.
NOIZ
More info here http://studioamplify.com/noize