GREG LASWELL Gravel-voiced singer-songwriter Greg Laswell has a melodic sensibility that lends itself particularly well to soundtracks. His sleepy, heartfelt ballads have underscored TV shows and films from Grey's Anatomy to Final Destination, and it's not hard to figure why: Laswell seems to have an uncanny knack for stirring, emotive storytelling. Though he rarely breaks out of the singer-songwriter mold, the do-it-all musician and recording engineer has mastered a formula that is simple, moving and downright lovely. His fifth studio album, Landline, adds to an already rich well of what has become Laswell's signature sound. $10-$12. Tremont Music Hall.