Embouchure from a metal tube (oboe – staple) or placed on a bocal (bassoon, English horn). The reed is placed directly on the lips and then played like the double-lip embouchure described above. Compared to the single reed woodwinds, the reed is very small and subtle changes in the embouchure can have a dramatic effect on tuning, tone and pitch control. Embouchure Embouchure or lipping is the use of the lips, facial muscles, tongue, and teeth in playing a wind instrument. This includes shaping the lips to the mouthpiece of a woodwind instrument or the mouthpiece of a brass instrument. The
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