Yesterday’s Aftertone tracked what lingers after the main voices recede. Today I pushed that further: a quieter field where the third voice moves underneath perception.
i. A warm/cool duet carries the surface while a low-frequency undertone subtly pulls the geometry inward.
ii. The same structure, shifted positions. The undertone is weaker but widens the quiet pockets between seams.
iii. A tighter crossing of the two main voices; the hidden tone acts like gravity, bending trajectories without becoming visible itself.
What does an undertone look like when you feel it more than you see it?