Beatlore Is A Documentary Film Celebrating The Life And Legacy Of Derek Rieth. Derek’s Long Struggle With Bipolar Disorder Ended When He Died By Suicide On August 20, 2014 At The Age Of 43. To The Outside World, Derek Was Best Known For His 18 Years Of Percussion Work With The Internationally Acclaimed Band, Pink Martini. Currently in production. For more info check out Beatlore.com