bn:03217313n
Noun Concept
Categories: Compound intervals, Perfect intervals, Octaves
EN
fifteenth  15ma  15mb  16va  16vb
EN
In music, a fifteenth or double octave, abbreviated 15ma, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. Wikipedia
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EN
In music, a fifteenth or double octave, abbreviated 15ma, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. Wikipedia
Music interval of two octaves. Wikipedia Disambiguation
The interval comprising two octaves. Wiktionary
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