George Cochran Lambdin is low-key throughout, a quality associated with Abyssal Bister - deep shadows dominate the composition. The dominant temperature is warm, with earth tones and fire-hues setting the emotional key. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. George Cochran Lambdin gives 30.6% of the composition to a single #27160B - a decisive chromatic anchor. #5D3520 delivers the chromatic peak at only 4.0% - a small shot of colour with outsized visual impact. At 68 units of value range, the palette has the tonal breadth to sustain complex spatial readings. This tonal restraint is characteristic of the George Cochran Lambdin approach: colour serves light, not the reverse. In the context of George Cochran Lambdin's full range of palettes, group 4 represents one movement in an ongoing chromatic dialogue.