David Hanselmann was too triumvirate times (which discs are all available on CD and I also all have) one of the best if not the best singer. The basic tone of voice and the ability to sound clean intonation even in the high altitudes make any recording of it into an experience. Unfortunately, I now was able to experience no live recording to, but I invite him cordially times deliver a taste with us. The plate is the prominent concept album at all for me. Great synths - which was not that easy at that time - brilliant idea and over again yet to be discovered.