Former Principal trombone of the Florida West Coast Symphony (now the Sarasota Orchestra, FL), Mr. Diehl has also performed with the Boston Symphony, Boston Pops, and Boston Pops Esplanade, as well as performances with The Florida Orchestra (Tampa), and the Chicago Symphony Orchestra, where he made a recording in 1989 of the music of Verdi's Opera Highlights with Sir Georg Solti. He has also performed under such notable conductors as Luciano Berio, Leonard Bernstein, Eduarto Mata, Gunther Schuller, Stanislaw Skrowaczewski, Stephan Sanderling, Bernard Haitink, Jahja Ling, Michael Tilson Thomas, and Leonard Slatkin. He was chosen as Principal Trombone of the American-Soviet Youth Orchestra, performing under Zubin Mehta and Dmitri Kitayenko in major cities in both countries. Additionally, Mr. Diehl was selected as Principal Trombone to represent Maine in the McDonald's All-American Band, marching in the Macy's Thanksgiving and Pasadena Rose Bowl Parades.
Mr. Diehl is an avid soloist and proponent of the trombone. He has commissioned and arranged several works for the trombone, most recently from composer Sanae Kanda: A Folk Tune. Other past commissions include Anthony DiLorenzo’s concerto Little Buckaroo, and Lauren Bernofsky’s solo Devil’s Dermish, and have received rave reviews throughout the world. His book “Low Brass Essentials” has been a text for numerous brass students, and has been used by students at Northwestern University. He has performed as a Solo Guest Artist with the National Repertory Orchestra in Colorado, soloist with New World Symphony, Florida West Coast Symphony, and as a concerto competition winner with the New England Conservatory Orchestra. Mr. Diehl was chosen as Finalist in the Houston Symphony’s “Ima Hogg” Concerto Competition 1994, and has done solo work with Trombone Seminars of Christian Lindberg and Joseph Alessi. Past teachers have included: Mr. Frank Crisafulli, Mr. Jay Friedman, Mr. Joseph Alessi, Mr. John Swallow, Mr. Norman Bolter, and Mr. Douglas Yeo. Mr. Diehl has tailored solo trombone music for regular performances in area church services.
One of Mr. Diehl’s passions is performing in Chamber Music settings, and has been active throughout his performing career, from Brass Quintets to performing as a soloist within an unlike ensemble, such as Roger Goeb’s Quartet for String Quartet and Trombone at Musicorda String Festival. He is a member of two working brass quintets, Epic Brass with whom he has toured and taught extensively, and Innovata Brass, a current group of wonderful players touring and recording their unique program of music. Past performances include member of New World Brass, made up of principal players from the New World Symphony, with whom he toured and recorded Ingolf Dahl’s Music from Brass on Argo label, as well as performances at the US Embassy in Paris, in Monaco, and in the Cayman Islands.
Mr. Diehl maintains a rigorous teaching schedule in addition to his many performance activities. He is Low Brass Teacher and Chamber Music Coach at New England Conservatory’s Preparatory Division, and serves as Artist Faculty at University of Southern Maine in Gorham. Additionally he teaches numerous high school-aged musicians in his private studio. Past teaching posts have included University of South Florida in Tampa; Manatee Community College in Bradenton, FL; Miami-Dade Community College; as well as Florida International University in Miami.