- Transcribe notes and pitch using https://essentia.upf.edu/reference/std_PredominantPitchMelodia.html
- Pitch-shift some cat sounds to match the pitch
- Put cat sounds on top of the backing track
This hack was created at the HAMR 2016: https://labrosa.ee.columbia.edu/hamr_ismir2016/
Contact: joro.dzhambazov@gmail.com
P.S. also check the presentation sf essentia on the https://github.com/georgid/music_hack_sofia