John has been involved with marching bands and drum corps for close to 45 years.  Following his time as a performer, he began working as an instructor for numerous high school bands and drum corps. High school bands he has worked with have earned many championship awards in Cavalcade of Bands and Tournament of Bands.  He began judging in 1978 with the Mid Atlantic Judges Association. He has judged with the National Judges Association (TOB, TIA), Cavalcade of Bands, Cavalcade Indoor, Keystone Indoor, Festivals of Music, and Homestead Festivals. He has been selected to judge many championship contests. He began judging with DCA in 1985.  He has had the honor of judging many DCA championship weekends, including prelims and finals on each visual caption. He became the judging coordinator of DCA in 2008 and continued in that role through the 2019 season.  He continues to perform as a tuba player with large groups and small ensembles in Central and Southern Delaware.