Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Band-in-a-Box - Band-in-a-Box is so easy to use!
music21 - Music21 is a Python-based toolkit for computer-aided musicology.
JJazzLab - Fed up with boring backing tracks ? Try JJazzLab!
Harmony Assistant - Harmony Assistant is an unbeatable software for computer-assisted music composition and editing.
Real-time Style Performer - The Real-time Style Performer (RSP) gives you the ability to play musical styles created for Yamaha...