They just put theirs over crushing guitar riffs. Here are three key tracks from Metallica’s classic album. Ernest Hemingway’s 1940 novel of the same name inspired “For Whom the Bell Tolls.” ...

READ MORE: 20 Greatest Metal Riffs of All-Time What were their picks? We’ve got some Black Sabbath, Judas Priest, Iron Maiden, Metallica, Pantera and Megadeth riffs on tap, but if you want to ...