Tritonus

Tritonus was a German progressive rock band active between 1972 and 1979. The band was initiated by Peter K. Seiler, a German art-student, based on Emerson, Lake and Palmer, complete with heavy keyboards and English vocals. The first album Tritonus was a conventional symphonic rock recording, while the second one Between the Universe features more evolved synth arrangements and a new vocalist, Geff Harrison. The group toured between 1973 and 1978, ending the next year.