When you buy through links on our articles, Future and its syndication partners may earn a commission. Asked if Spirit were a progressive rock band, peak-era bass player Mark Andes has no hesitation. ...

The musical decade of the 1970s came in on a psychedelic wave and went out on the whoosh of a synthesizer. The ’70s brought us pet rocks, polyester, shag carpeting, bean bag chairs, and the battle of ...