Method from_hertz

mingus/containers/note.py:235–246

Set the Note name and pitch, calculated from the hertz value. The standard_pitch argument can be used to set the pitch of A-4, from which the rest is calculated.

(self, hertz, standard_pitch=440)

        return 2 ** (diff / 12.0) * standard_pitch

    def from_hertz(self, hertz, standard_pitch=440):
        """Set the Note name and pitch, calculated from the hertz value.

        The standard_pitch argument can be used to set the pitch of A-4,
        from which the rest is calculated.
        """
        value = (
            log((float(hertz) * 1024) / standard_pitch, 2) + 1.0 / 24
        ) * 12 + 9  # notes.note_to_int("A")
        self.name = notes.int_to_note(int(value) % 12)
        self.octave = int(value / 12) - 6
        return self

    def to_shorthand(self):
        """Give the traditional Helmhotz pitch notation.