Represents a new-generation play-along package and a quantum leap over anything else previously available in this vein with over 6 hours of music, including 47 grooves and feels from all over the world–most in twotempos–88 tracks in all, truly professional sketch charts and incisive text by Tommy. An interactive groove experience for all level drummers with rhythm tracks that feature some of New York City's top musicians. Works inconjunction with the best-selling Grove Essentials DVD...