2009 West Chester Marching Band Workshop and Drum Major Academy 2009 George Parks Drum Major Academy @UMass featuring Thom Hannum Mobile Percussion Seminar !NEW! Best of DMA Mace Techniques "History of the Trumpet in Sight and Sound" Band Leadership Training Series (5-Disc Set) West Chester Marching Band Workshop Videos 1990-2007 UMass DMA & Mobile Percussion Seminar Videos (1991-2008) West Chester Band Leadership Training Souvenir Video (Individual Years) 2000 Thom Hannum's Mobile Percussion Seminar Remembering Walter Chesnut