Undertone or Undertones may refer to:
Music
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Undertone series, a sequence of notes that results from inverting the intervals of the overtone series
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The Undertones, Northern Irish band
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The Undertones (album), 1979 album by The Undertones
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Northwestern Undertones, a cappella group at Northwestern University, Evanston, Illinois, United States
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From woodwind instruments: Undertones may emerge as the tone component(s) of a note's sound which are lower in pitch than the frequency of the note.
Examples of woodwind undertones:
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Every note above low-G on a GHB pipe chanter entails some undertone of low-G; the energy of the low-G undertone comes from the dual side-holes towards the bottom end of the pipe chanter.
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Much more rarely considered is the sound - as undertone - which emerges from the very bottom of the chanter and might be termed: horntone, horn-note, belltone, or — most politely and concisely — the bellnote.
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The practical (conventional) fingering of notes entails further undertones such as: low-A emerging with fingered E, and C(#) & B undertones but not low-A with fingered D.
Relevance: Ill-tuned lower notes may — as undertones — mess-up the practical sound (tuning) of higher notes.
Separate pipes of a pipe organ, or of a GHB versus the pipe chanter - that is the drones - should not be practically discussed as undertones; they can be turned on and turned off, so each separate pipe is considered to produce its own sound(s).
Other uses
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Operation Undertone, part of the Allied invasion of Germany in World War II
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Undertone (advertising company), a New York-based digital advertising company
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An underlying or implied tendency or meaning; a subtext
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Skin undertone, as it applies to cosmetics; see color analysis (art)
See also
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Overtones (disambiguation)
