Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Waves GTR - From Fender® to Marshall®, Mesa/Boogie® to Vox®, and more, Waves has captured...
MMA - “MMA—Musical MIDI Accompaniment” is an accompaniment generator.
Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Sundog Scale Studio - The MIDI chords and melodies laboratory
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.