MirrorAxis

The MirrorAxis class is used to invert Pitch vectors about a fixed point via Pitch.invert.

Class Constructor

MirrorAxis(p: Pitch, q: Pitch)

A MirrorAxis is constructed from two Pitch vectors, which would be sent to each other via inversion about the resultant axis.

axis = MirrorAxis(
    SPN.to_pitch("C4"),
    SPN.to_pitch("G4"),
)

p = SPN.to_pitch("E4")
p.invert(axis)  # Eb4

from_spn

MirrorAxis.from_spn(ps: str, qs: str) -> MirrorAxis

Creates a MirrorAxis using SPN strings for two Pitch vectors which would be sent to each other via inversion about the resultant axis.

axis = MirrorAxis.from_spn("C4", "G4")