'La notte sopra la citta verde' is a 5 piece polyptych.
Willy Wiedmann created his Polycon Painting Style in the 60s. The term "polycon" is derived from the greek words polys "multiple" and ikon "picture" or "board". The Polycon painting as defined by Wiedmann is a multi picture and multicolor painting.
Typical for Polycon paintings is the composition of geometric forms which overlap, intertwine or complement each other. The different constructs create pictures that create pictures themselves, and so forth. The principle could be performed ad infinitum. Wiedmann worked with 45 and 90 degree angles. He also implemented in his works his musical background by placing the forms in a changing rhythm.
The Polycon Symphonies are a prefect example for his arrangement of colors and forms in correlation with eternity.