Javelin - Javelin is an all-in-one mobile app for playing sports.
ChordIQ - Learn notes, chords, sight reading, perfect pitch and more.
Concourse - Pipeline-based CI system written in Go
7Pad Scales and chords - Music instrument and assistant for playing scales and chords.
Mutronome for iOS - Practice drums with Apple Music
muted.io - A magical collection of interactive music theory tools & visual reference pages for musicians and music producers