Earlier this year, Dinosaur Jr. main man J Mascis released Several Shades Of Why, a solo album full of gorgeously weary acoustic shreddage. "I've Been Thinking," the song we've got up for download below, would fit perfectly on that album, but it's not there. Instead, it's the b-side of a new 7" single version of Mascis's cover of Edie Brickell's ...