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Standard guitar tuning uses six pitches: E2, A2, D3, G3, B3, and E4. Their fundamental frequencies are 82.41, 110.00, 146.83,

The female voice frequency range depends on what is being measured. A typical adult female speaking voice has a fundamental

A typical bass singing voice spans approximately E2 to E4, equal to 82.41–329.63 Hz when A4 is tuned to 440

The male voice frequency range depends on what you measure. A typical adult male speaking voice has a fundamental frequency

440 Hz is the note A4 in scientific pitch notation. It is the A above middle C and is commonly

A perfect fifth interval spans five letter names and seven semitones, such as C up to G. Abbreviated P5, it

432 Hz is exactly A4—the A above middle C—when the tuning reference is A4 = 432 Hz. In standard tuning,

A minor third interval contains three semitones, or three half steps, and spans three letter names. C to E-flat, A

C4 has a frequency of approximately 261.63 Hz in twelve-tone equal temperament when A4 is tuned to 440 Hz. More

The average male voice pitch in ordinary speech is roughly 100–120 Hz, though 125 Hz is also widely used as