acorde-cli-0.12.0 is not a library.
acorde-cli
Command-line conversion and inspection tool for acorde.
Input supports .musicxml, .mxl, .mid/.midi, .mscz, and .mscx. Conversion output is MusicXML or MIDI. info prints title, counts, tempo, time signature, and duration estimate; validate exits with status 1 when structural errors are found.