#WHAT ARE TRUMPET PEDAL TONES SERIES#
The higher resonances of the new series help the lips vibrate at the fundamental frequency and allow the pitch to sound.
The new fundamental can be played, however, as a pedal tone. The original fundamental is not raised all the way to the new fundamental pitch, and the original third harmonic becomes the new second harmonic. The member not present in the new series is the fundamental. This new series has all but one of its members present, instead of only the odd members. The resulting set of pitches is a new harmonic series altogether. The bell significantly raises all pitches in the series, and the mouthpiece limits the amount to which higher harmonics are raised. This set of pitches is too sparse to be musically useful for brass instruments therefore, the bells and mouthpieces of brasses are crafted to adjust these pitches. Cylindrical brasses do not naturally vibrate at this frequency.Ī closed cylinder (tubas are closed since our mouths our on one end) vibrates at only the odd members of its harmonic series. Its name comes from the pedals of a pipe organ. A pedal tone has the pitch of its harmonic series' fundamental tone. Pedal tones are special notes in the harmonic series of cylindrical-bore brass instruments. I put in bold the parts that I find especially tragic to my previous conceptions. It sums up concisely what I'm finding on Physics websites as well. But check out the Wikipedia article I've copied and pasted below. I would have told the students that my pedal C, 32.7 hz, is the fundamental, Harmonic 1 (H1), for the 16 ft tube. In preparing to help a Physics teacher teach the harmonic series with my tuba, I'm finding that I have some misconceptions about the physics of the tuba.
I would be grateful for your explanations.
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