Trombone so the name means "large trumpet". The trombone has a predominantly cylindrical bore like its valved counterpart the baritone and in contrast to its conical valved counterparts, the cornet, the euphonium, and the French horn. The most frequently encountered trombones are the tenor trombone and bass trombone. The most common variant, the tenor, is a non-transposing instrument pitched in B, an octave below the B trumpet and an octave above the pedal B tuba. The once common E alto trombone became less widely used as improvements in technique extended the upper range of the tenor, but it is now enjoying
Jazz band earlier periods of jazz, a bass saxophone was used as a bass line instrument, though this is far less common today. The trombone section consists of three tenor trombones and one bass trombone. The trumpet section consists of four trumpets, though some compositions and arrangements call for five trumpets. A trumpet player may sometimes double on a flugelhorn. The tuba is the largest and lowest-pitched brass instrument. This instrument made its first appearance in the 19th century, being played at orchestras. When involved with jazz, most tubas are played outdoors. Tuba players are generally called "Jazz tubists." Jazz violin is