As a composer, Greg has studied privately with Scott Eggert and Rodney S. Miller. He has composed numerous original works for the Lebanon Valley College Symphony Orchestra, including "Scenes from Childhood: Northwest Playground" and "The Inevitable Journey" which were debuted by the orchestra on their 2001 and 2006 summer European tours. One of Greg's works, "Scherzo for Summertime," was recorded by Steve Rudolph and Tom Strohman on their CD, "In Our Prime" and is available on Amazon.com and iTunes music stores through R&L Records.
Greg has also composed and arranged works for numerous individuals and musical organizations, including the Temple University Trombone Quartet, Perseverance Band of Lebanon, the Lebanon Valley College High School Honors Strings Orchestra, the Lebanon Valley College Marching Band, the Central Dauphin High School Marching Band, and the Lebanon High School Symphonic Band and Low Brass Ensemble.
In 2014 Greg released his first solo CD, "Strohman Says," which contains many of his original compositions, arrangements and transcriptions and is available on iTunes, Apple Music, CD Baby, and other distributers through tgNotes, Inc.