Brass instrument an organ or a choir. Brass instrument A brass instrument is a musical instrument that produces sound by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips. Brass instruments are also called "labrosones", literally meaning "lip-vibrated instruments". There are several factors involved in producing different pitches on a brass instrument. Slides, valves, crooks (though they are rarely used today), or keys are used to change vibratory length of tubing, thus changing the available harmonic series, while the player's embouchure, lip tension and air flow serve to select the specific harmonic produced from
Mouthpiece (woodwind) mouthpiece by a ligature. Anything that can hold the reed on the mouthpiece may serve as a ligature. Commercial ligatures are commonly made of metal or plastic. Some players (including many German clarinetists) prefer string or a shoelace, which is wrapped around the reed and the mouthpiece, to commercially manufactured ligatures. The clarinet mouthpiece is narrow inside and typically has a square or rectangular cross section from the baffle through the throat. The bottom of the mouthpiece is formed with a tenon that is ringed with cork. Today, as with the saxophone mouthpiece, the reed is placed against the surface