D sus4 - Research on Harmony

Five notes, all warm. D2, D4, A4, A5, A6 — the D suspended fourth with its root and suspended tone only, no third anywhere. Played Lent, mp, legato, in three — the phrase descending from A6 at the top to D2 in the bass, a slow waltz falling through registers of orange and yellow-orange.

The canvas is entirely warm. Orange in the middle registers, red-orange where D sits lower, yellow-orange lightening as the fifth climbs. Silver caps the painting at A6, the suspended fourth's highest note rendered as pale metal. No cool color at all — the suspended chord lives in amber and earth, the absence of a third leaving the harmony permanently open.

The most monochromatic étude in the series — a single warm hue modulated only by register, darkening downward, lightening upward, the suspension floating in its own amber light without resolution.