Helicopter String Quartet (screen title: Karlheinz Stockhausen: Helicopter String Quartet) is a 78-minute 1996 Dutch English- and German-language independent underground experimental documentary art film directed by Frank Scheffer.
Helicopter String Quartet (screen title: Karlheinz Stockhausen: Helicopter String Quartet) is a 78-minute 1996 Dutch English- and German-language independent underground experimental documentary art film directed by Frank Scheffer.