His performance credits include numerous solo and ensemble performances, including the Northwest Chamber Orchestra (Bach f-minor Keyboard Concerto), Orchestra of Central Washington University (Saint-Saens Piano Concerto No.2 in g minor), the Kenosha Symphony, Michael Drake and the No Tan Lines Band, Milwaukee Opera Company, Milwaukee Musical Theatre, Mr. Steve Allen, and several commercial pop and rock bands.
He is a former editor in the Keyboard Product Development Department at Hal Leonard Corporation, where he authored numerous books, articles, and music arrangements for commercial publication. He is the owner of Quiet Rain Music, a boutique producer of solo piano and electronic music recordings. Greg received his M.M. in Piano Performance from Central Washington University, where he also earned undergraduate degrees in Mathematics and Music Theory/Composition. His piano instructors have included Lockrem Johnson (a Guggenheim Fellow in Composition), Dr. Donald Chan, Tim Strong (a Cliburn Piano competitor), Dr. John Salmon (winner of several international piano competitions), and Dr. Bonnie Bricker-Smith.