Aâ™­ (musical note)

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A (a-flat; also called la bémol) is the ninth semitone of the solfège.

It lies a diatonic semitone above G and a chromatic semitone below A, thus being enharmonic to G, although in some musical tunings, A will have a different sounding pitch than G.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the A semitone is approximately 415.305 Hz. See pitch (music) for a discussion of historical variations in frequency.

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Last updated on Sunday July 06, 2008 at 17:06:30 PDT (GMT -0700)
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