Brass instrument can be very useful for a 1st or 3rd horn player, who uses the F side less. Another approach was the addition of two sets of slides for different parts of the range. Some euphoniums and tubas were built like this, but today, this approach has become highly exotic for all instruments except horns, where it is the norm, usually in a double, sometimes even triple configuration. Some valved brass instruments provide triggers or throws that manually lengthen (or, less commonly, shorten) the main tuning slide, a valve slide, or the main tubing. These mechanisms alter the pitch of notes
Tenor cornett cornetts, true alto or tenor cornetts. However, a number of instruments with a larger bore have survived and these instruments seem to have had a sound somewhat reminiscent of the serpent. The timbre of the small bore tenor cornetti is more "focused" and incisive than that of their large bore counterparts. Some modern cornett makers, like Christopher Monk, for instance, have made both varieties of tenor cornett available to customers. The tenor cornett was used almost exclusively as a consort instrument. No solo music survives for this instrument. In the works of Schütz, Schein, Scheidt, Praetorius, Gabrieli, Viadana and other