sentences:  The bass trumpet in C sounds one octave lower than written, the bass trumpet in E sounds a major sixth lower than written and the bass trumpet in B sounds a major ninth lower than written.Wagner's transpositions include bass trumpet in E, E, D, C and B, though players often have parts for the bass trumpet transposed into C to play on the C bass trumpet.Cy Touff was one of the few jazz musicians to play the bass trumpet and while the bass trumpet is usually played by a trombonist, British trumpeter Philip Jones performed on the bass trumpet while employed by the Royal Opera House, Covent Garden.