TI4-1009 wrote:Sorry, as an occasional cello player I couldn't resist. From Wikipedia:
"A wolf tone, or simply a "wolf", is produced when a played note matches the natural resonating frequency of the body of a musical instrument, producing a sustaining sympathetic artificial overtone that amplifies and expands the frequencies of the original note, frequently accompanied by an oscillating beating (due to the uneven frequencies between the natural note and artificial overtone) which may be likened to the howling of the animal. A similar phenomenon is the beating produced by a wolf interval, which is usually the interval between E♭ and G♯ of the various non-circulating temperaments.
Wolf tones are usually only noticed on bowed instruments, most notably the violin family, since the tones produced are played for much longer periods, and thus are easier to hear. Frequently, the wolf is present on or in between the pitches E and F♯ on the cello, and around G♯ on the double bass. A brass wolf tone eliminator typically placed on the G string (second string from the left) of a cello, between the bridge and the tailpiece."
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