(<a href="http://www.j-archive.com/media/2007-02-19_J_02.jpg" target="_blank">Jon of the Clue Crew peers down between the cymbals.</a>) Playing triplets--<a href="http://www.j-archive.com/media/2007-02-19_J_02.mp3">three strokes for every two notes</a>--was a trademark of this late Led Zeppellin drummer