"Vier Farbrhythmen an vier Farbfeldern" - Concrete Art by O.a.L. (1952-69) #1824033 (License: Personal Use)

Created between 1952 and 1969, this concrete artwork features four dominant quadrants-alternating red and green-intersected by slender vertical and horizontal bands of complementary tones. The precise arrangement evokes musical rhythm through color repetition and spatial counterpoint, reflecting mid-century European geometric abstraction. Executed in oil on canvas (120×120 cm), it exemplifies systematic color theory and structural harmony.

Used in museum exhibition pages, academic art history resources, or digital archives focused on postwar European concrete art; targets users researching geometric abstraction, color theory, or O.a.L.’s oeuvre.