https://github.com/tandav/musiclib/blob/889166c654b9813acac1aad05a935414fb5a2ba3/src/musiclib/midi/pitchbend.py#L93
https://gitlab.tandav.me/tandav/libmv/-/blob/1485210e0a64f4eef929604291262f8868eb94c1/libmv/pitch/slices.py#L14