From the cycle of compositions entitled Aus den Sieben Tagen (From the seven days - Venu des sept jours):
Es (10th May 1968); Aufwärts (8th May 1968)
Recorded August 31st (Es) and August 29th (Aufwärts), 1969 at the Georg-Moller-Haus (Loge) in Darmstadt for WDR Cologne.
℗ 1972 Polydor International GmbH