This event is a unique event as it includes not only a building component, but also a written test. I will first provide information on the test. You will be given a minimum of 20 minutes to complete a test regarding perception of sound and music theory, among other topics. This test will not contain over 50% mathematical questions at regionals, but at states and nationals it may be up to 75% mathematical questions. It is important to note that unless stated, answers must be provided in metric units with appropriate significant figures. The test may include basic principles of acoustics (aeroacoustics, architectural acoustics, electroacoustics, speech, and underwater acoustics), basic conceptual ideas and basic algebraic calculations of sound wave theory, fundamental elements of music sound, perception, and resonance (pitch, amplitude intensity and measurement, harmonics, overtones, open and closed pipes, strings, membranes), design, function, and construction of various instrument types, notes, major scales, reading intervals, time signatures, tempo, and common musical terms. The topics listed will be covered at all levels of competition, and there are additional topics in the rules that only pertain to state and national competitions. Helpful links are below.
For the build, you must build an instrument and tune it before the competition. At the competition, you will play a music excerpt on it as well as a chromatic scale. Unlike the test, there is too much detailed information that must be acknowledged while completing the build portion of this event, so I cannot summarize it here. One important point is that toys, professional instruments, bells, mouthpieces, reeds, etcetera, may not be used as part of your instrument. The only exceptions are strings and rosin of any type, which you may use. The website below may provide some ideas.
Each team may bring one three-ring binder of any size containing information in any form from any source attached using the available rings. Sheet protectors, lamination, tabs, and labels are allowed and encouraged. You may remove sheets from the binder during the event. Each team may also bring writing utensils and 2 stand-alone calculators of any type. If testing a stringed device, teams may bring rosin. Each team must also bring a design log and be able to answer questions regarding the design, construction, and operation of their device. Helpful supplies are linked below.