Initial Harmonic NCO Implementation#309

Draft

bbalberc42 wants to merge 5 commits intoelectro-smith:masterfrom

bbalberc42:dev_nco

Commits on Feb 1, 2025

Initial implementation of a basic harmonic NCO from 2020.
bbalberc42
committed

Commits on Feb 2, 2025

Cleaned up the NCO code, and updated the Audio callback.
bbalberc42
committed

Commits on Mar 2, 2025

Created a basic Major Chord Player.
bbalberc42
committed

Commits on Mar 30, 2025

Created a basic 4-chord chord sequencer using the NCO's
bbalberc42
committed

Commits on Sep 29, 2025

Added a button handler to advance the chords
bbalberc42
committed