Known for her work in Detroit rock band Tyvek and the late-great Saturday Looks Good to Me, Shelly Salant is a fixture of Midwestern indie music. As Shells, she makes adventurous, guitar-driven instrumental albums that pair the collaged freedom of Mick Turner from Dirty Three’s solo records with the best of ’90s indie rock instrumentals (think Yo La Tengo’s “Green Arrow,” Halo Benders’ “Rebels Got a Hole in It,” and Silver Jews’ “Night Society”). Ostensibly free and easy collections of home recordings, when played as a whole her albums gather a sense of intention and purpose. They feel casually grand, transcendent, and somehow wise. by Joshua James Amberson