Conversation in Orange and Brown (Horn.Tuba) Composed in 2008, "Conversation in Orange and Brown" is a duet for Tuba and Horn. Full of rich harmony and interesting counterpoint, this piece is perfect for recitals. Bartholomew coaxes a surprising number of textures out of two instruments, and both the Horn and Tuba have technically rewarding passages to play. Premiered March 22, 2008, by Joseph Alvarez, Tuba and Katie Taylor, Horn, at the Music Recital Hall of the University of South Florida, Tampa, Florida.