License

This project uses multiple licenses. Full attribution is in NOTICE.

Component

License

Package source code

MIT

Code adapted from Partitura (tonal_tension.py, pitch_spelling.py)

Apache-2.0

Bundled Essen Folksong Collection MIDI

CC BY-SA 4.0

The Essen corpus remains under CC BY-SA 4.0 when redistributed or adapted: retain attribution and share alike. It is not covered by the MIT license that applies to the rest of the package.

See LICENSE-MIT, LICENSE-APACHE, and NOTICE in the repository root.