"I have tried several Warburton mouthpieces. They are all very fine, but I have a preference for the 30D and 32D. I play many tubas in very varied situations and I always like to have two mouthpieces on me; one for the gig and one if I feel the gig needs a change. These two mouthpieces work extremely well on many of my horns. They are comfortable on my face and provide clear articulation, superior intonation in the high range and a ringing tone without sacrificing the warmth that I like. The 30D provides an especially nice "snap" on the cimbasso. I'm very happy that Les (Benedict) turned me on to these mouthpieces."
William Roper is a multidisciplinary artist based in Los Angeles. As a tubaist, his professional experience ranges from the symphony stage to free improvisation groups. He has toured North and South America and Europe as soloist and as a member of jazz, rock and classical ensembles. His has released several recordings as a leader and co-leader. He has played or recorded with numerous artists and ensembles including the Los Angeles Philharmonic, Los Angeles Master Chorale, Elton John, Leon Russell, Jusef Lateef, James Newton, Horace Tapscott, Anthony Braxton, Michael Vlatkovich, Vinny Golia, Wadada Leo Smith, Glenn Horiuchi and many others. In addition, he has played on several major motion picture soundtracks.
Roper has received several awards from organizations such as NEA, California Arts Council, City of Los Angeles Department of Cultural Affairs, Meet the Composer, American Music Center, American Composers Forum, Durfee Foundation, Broady Arts Fund and others. He has been a resident composer at the Djerassi Institute in California and the Oberfaelzer Kuenstlerhaus in Bavaria.
As a composer he has fulfilled commissions for the Gloria Newman Dance Theater, Dance L.A., SASSAS. His compositions have been performed in the U.S. and Europe.
He has done extensive work in the fields of theater, dance and performance art. In addition to his own work he has collaborated with such artists as Jackie Apple, Linda Austin, Bob Carroll, Heidi Duckler, John Fleck, Anna Homler, Scott Kellman, Dan Kwong, Jeff McMahon, Joseph Mitchell, Betty Nash, Gloria Newman, Rudy Perez, Will Salmon, Joseph Santarromana, Eve Stabolepsy and Bernie White.
As a visual artist he media are painting, assemblage, video and performance art. His work has been exhibited in the United States and Europe.