"Given Jason Detwiler's eye-opening Macbeth, major-house recognition will soon be on the way for this astoundingly gifted bass-baritone. Detwiler sings with excellent diction, seamless legato, musical intelligence and unquestionable beauty of tone; notes are attacked straight on, hurled across the footlights with commanding power."
Opera News - Jan 2007
"Jason Detwiler, despite his youth, has been heard in the South Bay in many roles, but nothing prepared me for his Macbeth. He sang simply, quietly, naturally, with a warm, velvety voice. Top and bottom were good, but in the middle voice, Detwiler was extraordinary."
San Francisco Classical Voice - Oct 2006