Studio Album, released in 1972 Songs / Tracks Listing Side A: 1. Einladung (Invitation) (20:32) Side B: 2. Das Echo Der Gegenwart (The Echo Of The Presence) (10:08) 3. Das Echo Der Zeit (The Echo Of Time) (13:05) Side C: 4. Das Echo Der Zukunft (The Echo Of The Future) (18:13) Side D: 5. Das Echo Der Vergangenheit (The Echo Of The Past) (19:38) Total Time: 81:26