Berklee is one of the best known institutions to offer music education. They offer some courses online.
- Vienna Conservatory (link), jazz (link)
- Jazz Music Lab (link)
- Music and Arts University (link)
- Vienna Music Institute (link)
- Prayner Conservatory (link)
- Campanella (link)
- List of available courses at Class Central (link). Includes Coursera, Kadenze, FutureLearn, etc.
- The 40 Best Sources of Free Music Education Online (link)
- BBC (link)
- Dave Conservatoire (link)
- MIT Open Courseware (link)
- Open University courses (link)
- Kadenze (link)
- Stanford Open edX
- Open Yale Courses (link)