Mouthpiece (brass) in the context of "Tuba"

The alphorn (German: Alphorn, Alpenhorn; French: cor des Alpes; Italian: corno alpino) is a traditional lip-reed wind instrument. It consists of a very long straight wooden natural horn, with a length of 3 to 4 metres (9.8 to 13 feet), a conical bore and a wooden cup-shaped mouthpiece. Traditionally the alphorn was made in one piece from the trunk of a pine. Modern alphorns are usually made in three detachable sections for easier transport and handling, carved from blocks of spruce. The alphorn is used by rural communities in the Alps. Similar wooden horns were used for communication in most mountainous regions of Europe, from the Alps to the Carpathians.

The sousaphone (/ˈsuːzəfoʊn/ SOO-zə-fohn) is a brass musical instrument in the tuba family. Created around 1893 by J. W. Pepper at the direction of American bandleader John Philip Sousa (after whom the instrument was then named), it was designed to be easier to play than the concert tuba while standing or marching, as well as to carry the sound of the instrument above the heads of the band. Like the tuba, sound is produced by moving air past the lips, causing them to vibrate or "buzz" into a large cupped mouthpiece. Unlike the tuba, the instrument is bent in a circle to fit around the body of the musician; it ends in a large, flaring bell that is pointed forward, projecting the sound ahead of the player. Because of the ease of carrying and the direction of sound, it is widely employed in marching bands, as well as various other musical genres. Sousaphones were originally made of brass. Beginning in the mid-20th century, some sousaphones have also been made of lighter materials, such as fiberglass and plastic.