B (musical note)
Musical note / From Wikipedia, the free encyclopedia
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"B (note)" redirects here. For other topics, see B (disambiguation).
"H (musical note)" redirects here. For the musical note B in German notation, see B♭ (musical note).
B, also known as Si, Ti, or, in some European countries, H,[1] is the seventh note and the twelfth semitone of the fixed-Do solfège.[citation needed] Its enharmonic equivalents are C♭ (C-flat) and A (A-double sharp).
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of Middle B (B4) is 493.883 Hz.[2] See musical pitch for a discussion of historical variations in frequency.