Pitch Ability Test - Test your Pitch Ability. Measure your pitch take over and pitch retention abilities. Know where you stand on the road to Absolute Pitch. Especially, measure the criteria: Accurately sing a named note without a reference.
GNU Solfege - GNU Solfege is free music education software.
GitHub Audio - Tracks events across GitHub to generate calming work music
EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
AudioSwift - Use your trackpad as a MIDI controller.
Meludia - Listening exercises and to sharpen your ear and music theory skills