Band-in-a-Box - Band-in-a-Box is so easy to use!
Flowkey - The easiest way to learn piano with your iPhone or iPad
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
Jameasy for Violin - Play rhythm game with a real violin. you can play with background music and real-time feedback
Real-time Style Performer - The Real-time Style Performer (RSP) gives you the ability to play musical styles created for Yamaha...
alphaTab - alphaTab is a cross platform music notation and guitar tablature rendering library.