His is a white key on the piano. It sounds at 523.25 Hz in octave 4.
His can also be written as C. These are enharmonic equivalents: the same pitch, the same key on the piano, a different name on the page. Which spelling is correct depends on the key and on how the note functions, not on the sound.
Frequencies for His in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| His1 | 36 | 65.41 Hz |
| His2 | 48 | 130.81 Hz |
| His3 | 60 | 261.63 Hz |
| His4 | 72 | 523.25 Hz |
| His5 | 84 | 1046.5 Hz |
| His6 | 96 | 2093 Hz |
| His7 | 108 | 4186.01 Hz |
The most common chords built with His as the root.
His is a white key on the piano.
His4 sounds at 523.25 Hz with A4 tuned to 440 Hz.
His can also be written as C. They are the same pitch spelled differently.