Kevin Dettmar

No decade is dominated by a single genre of popular music, but the 1970s was arguably more motley than most. What is the sound of the ’70s? Is it … folk rock? (Neil Young’s Harvest turned 50 last year.) Progressive rock? (Prog’s nadir, Yes’s Tales From Topographic Oceans, was released in 1973 and promptly crashed under its own weight.) How about disco? Punk? Post-punk? New wave? Reggae? Rap? Yes, yes, yes, yes, yes, and yes.

In June 1984, at New York’s Quadrasonic Sound studios, Leonard Cohen laid down a song he’d spent years writing. “Hallelujah” would eventually join the pantheon of contemporary popular music; at the time, though, the Canadian singer-songwriter may as well have dropped it off the end of a pier.