Octaves of a grand piano keyboard with scientific and Helmholtz pitch notation. Middle C is colored in gray. 88 keys and seven full octaves for playing the Western musical scale. Illustration. Vector. premium vector by Furian

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white vector illustration key black classical grand instrument gray symbol keyboard note scale music musical template piano Octave notes bass treble layout perfect harmony western middle scientific clef class seven interval keys pitch octaves harmonics 88 white background grand piano musical scale eighty eight helmholtz pitch notation pitch class helmholtz notation perfect octave scientific notation

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