Jug (instrument) Jug (instrument) The jug used as a musical instrument is an empty jug (usually made of glass or stoneware) played with buzzed lips to produce a trombone-like tone. The characteristic sound of the jug is low and hoarse, below the higher pitch of the fiddle, harmonica, and the other instruments in the band. With an embouchure like that used for a brass instrument, the musician holds the mouth of the jug about an inch from their mouth and emits a blast of sound, made by a buzzing of the lips, directly into it. The jug does not touch the musician's
Brass instrument the valves and springs, and the brass of the tubing. This may take the form of desiccant design, to keep the valves dry, sacrificial zincs, replaceable valve cores and springs, plastic insulating washers, or nonconductive or noble materials for the valve cores and springs. Some instruments use several such features. The process of making the large open end (bell) of a brass instrument is called "metal beating". In making the bell of, for example, a trumpet, a person lays out a pattern and shapes sheet metal into a bell-shape using templates, machine tools, handtools, and blueprints. The maker cuts out