pitch-class

[Function]
  (`pitch-class` freq [scale])

Returns the pitch class of freq, which can be a note or keynum in scale.

    cm> (pitch-class 'df5)
    1
    cm> (pitch-class 'cs4)
    1
    cm> (pitch-class 61)
    1
    cm>

#### See Also:

- `hertz``` [Function]
- `invert``` [Function]
- `keynum``` [Function]
- `note``` [Function]
- `note-accidental``` [Function]
- `note-name``` [Function]
- `octave-number``` [Function]
- `prime-form``` [Function]
- `scale-max``` [Function]
- `scale-min``` [Function]
- `scale-mod``` [Function]
- `scale-order``` [Function]
- `scale<``` [Function]
- `scale<=``` [Function]
- `scale=``` [Function]
- `scale>``` [Function]
- `scale>=``` [Function]
- `transpose``` [Function]