Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Captain Chords - Write chord progressions in your favorite DAW
Guitar Pro 7 - Create, play and share your tabs
RapidComposer - MusicDevelopments RapidComposer: Music Prototyping and Automated Composition Software
Synfire - The comprehensive Music Prototyping Studio for professionals and enthusiasts.
Cthulhu - VST MIDI-FX plugin for harmonic inspiration