Sleeper’s compositions have been performed and broadcast throughout the USA, and in Europe, Asia and South America. Phill O'Neill, trumpet, will give the Australian premiere of Sleeper’s Concerto for Trumpet on October 26 with the Australian Army Band Sydney. Sleeper's latest CD, featuring his Symphony No. 1, Xenia and Six Arias for Cello was featured on Radio Arts Indonesia in July (Albany Records).
“Hauntingly Mysterious”, “Richly Lyrical”, “Soaring Melodies” are all phrases used to describe the music of Thomas M. Sleeper.
Hailed by the Miami Herald “as a conductor of persuasive fluency and fiery conviction,” Sleeper enjoys an active dual career as composer and conductor. His output includes six operas, seven concerti, two symphonies, four orchestral song cycles, works for chorus with orchestra, three string quartets and numerous other vocal and instrumental chamber works.