Marching brass 1980s and early 1990s, DEG Music Products commissioned Willson Brass of Switzerland to design a Euphonium bugle, and their design used a medium shank mouthpiece that is not regularly seen in the United States. The contrabass bugle, or "contra", is the bugle equivalent of a marching tuba and its variants (the sousaphone and helicon). This bugle was designed in the 1960s. The original design for a contrabass called for an instrument in CC (the equivalent tubing length of a CC tuba), carried in front of the marcher like the higher voices. This was quickly replaced with a shoulder carried variant
Tuba that the fundamental would be missing entirely, and would only be inferred from the overtones. However, the node and the antinode collide in the same spot and cancel out the fundamental. The tuba is generally constructed of brass, which is either unfinished, lacquered or electro-plated with nickel, gold or silver. Unfinished brass will eventually tarnish and thus must be periodically polished to maintain its appearance. Some tubas are capable of being converted into a marching style, known as "marching tubas". A leadpipe can be manually screwed on next to the valves. The tuba is then usually rested on the left