The intertwined histories of garage and psychedelic rock would be very different—and not nearly as wild—without the influence of the 13th Floor Elevators. As this invaluable 20-track primer demonstrates, the Austin band unleashed a riff-powered, acid-infused brand of rock that outgunned anything by their peers in London and San Francisco. Though the many troubles of frontman Roky Erickson ended their run too soon, the passage of time can’t dull the ferocity or impact of “You’re Gonna Miss Me” and “Fire Engine.”