VArranger - vArranger is a PC arranger software, playing Yamaha, Roland and Ketron styles in realtime !
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
nimbu - nimbu is the arranger, to play characteristic accompaniments. Accompaniments that allow the title to sound and to be recognized without melody. This arranger performs the way music works. In realtime.
music21 - Music21 is a Python-based toolkit for computer-aided musicology.
Real-time Style Performer - The Real-time Style Performer (RSP) gives you the ability to play musical styles created for Yamaha...
Harmony Assistant - Harmony Assistant is an unbeatable software for computer-assisted music composition and editing.