Scale Heaven - Browse and play any scale/chord, chord progression.
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
Scales-Chords - Free online music tools featuring a searchable chord database and chord charts.
Mutronome for iOS - Practice drums with Apple Music