Spirit is one of those bands you should know. It was fronted Randy California, who as a young teenaged prodigy had a band called The Blue Flames that would tear it up at the historic Cafe Wha? in the Greenwich Village. The Blue Flames also featured a dude you might have heard of named Jimi Hendrix. California, whose real last name was Wolfe, was supposed to join the Jimi Hendrix Experience, but since he was only 15, I guess he was too young to go to England. In hindsight, I'm sure he regretted that move. When Spirit broke up some of the remaining members found continued success with a band called Jo Jo Gunne and later with a Country Rock band called Firefall, which put out both a gold and platinum album.
Anyway, let's talk about "Taurus." It's vocal-less, but it contains a riff which pretty much all guitarists learn a variation of at some point. The more famous riff is by Led Zeppelin. As you will hear, a good 90% of it came from the band Spirit first.
Will you be able to tell which Led Zeppelin song I'm talking about?
"Taurus" by Spirit
This is a great album