Spectrum
Lien wiki : Spectrum
Spectrum is an Australian progressive rock band which formed in April 1969 and broke up in April 1973.
The original line-up was Mark Kennedy on drums, Lee Neale on organ (ex-Nineteen87), Bill Putt on bass guitar (ex-Lost Souls), and Mike Rudd on guitar and lead vocals (ex-Chants R&B, The Party Machine).