The included notebook presents the separation/segmentation algorithm presented in the following paper:
http://music.cs.northwestern.edu/publications/seetharaman_pardo_ismir16.pdf
Seetharaman, Prem, and Bryan Pardo. "Simultaneous separation and segmentation in layered music." Proc. of the 17th International Society for Music Information Retrieval Conference (ISMIR). New York City, NY, USA, 2016