I ended up creating a lighter version of this for one my projects, https://github.com/Miserlou/chords2midi https://github.com/Miserlou/chords2midi I think that

I ended up creating a lighter version of this for one my projects, https://github.com/Miserlou/chords2midi https://github.com/Miserlou/chords2midi I think that something that Alda looks like it lacks right now is doing things around intervals rather than notes, as transpositions and key changes will be very tedious without embedded knowledge of intervals. My project is based around a Python library called Mingus, which I think gives you most of what you'd ever need to build a music programming project. https://bspaans.github.io/python-mingus/ https://bspaans.github.io/python-mingus/