Spectrum is an Australian band from the early 1970's. Australian Spectrum was the brain-child of the eccentric song-writer Mike Rudd and his bassist mate, Bill Putt. They had limitted success commercially and remained an underground band. In the mid 70's they formed a more commercial unit called Indelible Murtceps (Spectrum spelt backwards) and often played a double set, one as Spectrum one as Murtceps.
Rudd and Putt went on to form another more commercially successful band, Ariel, in the late 70's.
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