sentences:  He also often performs works involving singing and spoken text; Richard Barrett's work "Interference" exploits both his vocal and clarinet-playing abilities, and he gave the premiere of Aaron Cassidy's work for solo voice, "I, purples, spat blood, laugh of beautiful lips".He has also performed concerts featuring nineteenth-century melodrama works for speaker and piano, notably with pianists Mark Knoop and Ian Pace and sung lieder by Schubert and Schumann.He has recorded for ETCETERA, NMC, and ABC Classics.