EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
Volt - Volt is a reactive web framework where Ruby code runs both on the server and the client (via opal).
GitHub Audio - Tracks events across GitHub to generate calming work music
Grid50 - The Marketplace for Photographers & Videographers
GNU Solfege - GNU Solfege is free music education software.
KitSplit - Airbnb for creative equipment - rent cameras, drones & more