Meludia - Listening exercises and to sharpen your ear and music theory skills
Helio Workstation - Cross-platform lightweight speed-painting tool for creating music.
GNU Solfege - GNU Solfege is free music education software.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
Auricula - Practice your sense of hearing and learn to identify intervals for your musical development.
Guitar Pro 7 - Create, play and share your tabs