Thanks for the help. BPM that works for me at the moment is 23 to be in sync with the video. For the 'notes should be rising', I think I was not clear enough what my problem is. I want that when one instrument plays a C5, and another instrument plays a D5, then the second one should sound higher. Bu...

I have made a video that shows a cool graph: https://archive.org/details/gray-4-universal. To accompany the video, I made a song, according to the folllowing rule: the notes played at a given time correspond to the active vertices in the graph of the video (0 -> B, 1 -> C,..., 6->a, 7-b) at that tim...