RapidComposer - MusicDevelopments RapidComposer: Music Prototyping and Automated Composition Software

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

MuseScore.org - Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore. For Windows, Mac and Linux.

Odesi - ODESI is a music sketchpad that exports your projects to Audio and MIDI.

Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.