You play your chords with your left hand, the melody with your right, and nimbu does the accompaniment. Just like an auto accompaniment. Yet with more tones. nimbu comes with 100 styles and imports Yamaha styles. In addition nimbu calculates chord progressions and title-related accompaniments from MIDI Files.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Real-time Style Performer - The Real-time Style Performer (RSP) gives you the ability to play musical styles created for Yamaha...
music21 - Music21 is a Python-based toolkit for computer-aided musicology.
VArranger - vArranger is a PC arranger software, playing Yamaha, Roland and Ketron styles in realtime !
Harmony Assistant - Harmony Assistant is an unbeatable software for computer-assisted music composition and editing.
Live-Styler - The Live-Styler is a fully equipped, software based computer organ.