Tape It - App for songwriting & audio recording.
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
Songcraft.io - A platform for songwriters to write, organize & collaborate.
Clever - syncing between education applications for K-12 schools
RiffShare - Write down a musical riff, send to band members, collaborate
Claroline - Claroline is a collaborative eLearning and eWorking platform.