2023-12-30 • 4 min read midihum is a command-line tool for humanizing MIDI – that is, for taking as input MIDI compositions and producing as output those same compositions with new velocity (loudness/dynamics) values for each of the contained notes. midihum uses gradient boosted trees, with ~400 engineered features, and is trained on 2.6K competition piano performances. You can use it to make your digital compositions sound more natural and expressive, and to find natural climaxes and moments of...