B♭ (musical note)

musical note
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B (B-flat; also called si bémol) is the first note of the B♭ minor scale. It is also enharmonic to A-sharp.

B Flat

Designation by octave change

Scientific designation Helmholtz designation Octave name Frequency (Hz)
B−1 B͵͵͵ or ͵͵͵B or BBBB Subsubcontra 14.568
B0 B͵͵ or ͵͵B or BBB Subcontra 29.135
B1 B͵ or ͵B or BB Contra 58.27
B2 B Great 116.541
B3 b Small 233.082
B4 b One-lined 466.164
B5 b′′ Two-lined 932.328
B6 b′′′ Three-lined 1864.655
B7 b′′′′ Four-lined 3729.31
B8 b′′′′′ Five-lined 7458.62
B9 b′′′′′′ Six-lined 14917.24
B10 b′′′′′′′ Seven-lined 29834.481

Common scales beginning on B change