Soundgarden is giving away a song for free if you finish this puzzle — mashable.com

Soundgarden fans can earn a free song download from the Seattle rockers' upcoming album, Echo Of Miles: Scattered Tracks Across The Path, when they finish a puzzle. Upon completion, players will get "The Telephantasm (Resurrection Remix)" track from the album, which also includes six unreleased tracks and a new song called "Storm." The puzzle is an easy game, where you can flip and pair matching cards with each other.

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