It’s coming in at 186 pages, with about 210 audio tracks. The son, danzón and Arsenio sections are the most in-depth of my many attempts to do justice to these genres. Changüí has been interesting. The tres guajeos made wonderful tumbaos for piano, but the marímbula is really more a pitched drum. If you played exactly what the marímbula plays on a bass, it would sound horrible, so I’ve transcribed the rhythms and added notes to match the piano tumbaos. Put all that in an appendix since it doesn’t follow the main approach of basing tumbaos on real historical recordings.