Riddim: Claves of African Origin
This unconventional method book, by Medeski Martin & Wood drummer Billy Martin, is a serious four-way coordination workout based on a series of four-, six-, and eight-beat Afro-clave patterns and a few odd-note rhythms. Each clave is presented in the author's unique notational system, which uses X/s for played strokes and periods for rests. The book gets progressively more difficult as various bass drum figures and left-foot/left-hand accompanying patterns are added to the mix. On the included CD, billy demonstrates many of the examples to help you get an understanding for how hard these things cangroove. --Michael Dawson, Modern Drummer Magazine