Every 8-note, 12-beat melody combo is in CC0: https://mashable.com/article/music-melody-algorithm-midi-copyright https://mashable.com/article/music-melody-algor

Every 8-note, 12-beat melody combo is in CC0: https://mashable.com/article/music-melody-algorithm-midi-copyright https://mashable.com/article/music-melody-algorithm-midi-cop...