Assertion: spectrum | /r/HasProperty | formed in april
Facets:
Source sentences:
text: Spectrum were formed in April 1969 in Melbourne, as a progressive rock group, by Mark Kennedy on drums (ex-Gallery), Lee Neale on organ (ex-Nineteen87), Bill Putt on bass guitar (ex-Gallery, The Lost Souls), and Mike Rudd on guitar, harmonica and lead vocals (ex-Chants R&B, The Party Machine, Sons of the Vegetal Mother).