I went to a drum clinic by Frankie Malabe years before the popular book Afro-Cuban Rhythms for Drumset came out. I’m pretty sure it was sometime between 1989 and 1991 at a shop called Preferable Percussions in Minneapolis.
I have an audio copy of the clinic that I’m working on converting. In the meantime, here’s a copy of the handout:
Rhythms Covered on the Handout
I highly recommend getting the book if you don’t have it.