Musicope - The Piano Game. Contribute to oldrich-s/musicope development by creating an account on GitHub.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Synthesia - A fun way to learn how to play the piano.
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.
Piano From Above - Piano From Above is a program that turns learning the piano into a videogame.
Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.