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.
Coursera - Build skills with courses, certificates, and degrees online from world-class universities and companies
Guitar Pro 7 - Create, play and share your tabs
Khan Academy - Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.
edX - Best Courses. Top Institutions. Learn anytime, anywhere.