The essence of playing mallets: special exercises for the drummer & percussionist - Richards, Emily (Interworld Music, 1991)
Documental–Presentador: Emil Richards–Participantes: Joe Porcaro, drums ; David McKay, piano ; Joel DiBartolo, bass–Créditos: executive producer Gerry James–Based in part on his book, "Mallet Exercises for the Drummer and Percussionist"–Distributed by Warner Bros. Publications–Requerimientos especiales para la proyección. Reproductor de VHS