the player tunes the instrument by tightening and loosening the instrument accordingly. the dolphin knight, pie press (2010). club said, "drake may not have an hour's worth of great songs here, but he does have an hour's worth of thoughts he needs to get off his chest." their blues rock interpretation inspired many cover versions and the rock and roll hall of fame included it as one of the "500 songs that shaped rock and roll". it is, in principle, a static structure; that is, it's a structure that cannot be modified once it's built. 