Seattle quintet Great Grandpa self-identifies as “grunge pop,” which is a pretty accurate tag; their guitars seem to have been run through Butch Vig’s brain and every melody is an earworm. But the band’s debut LP, 2017’s Plastic Cough, has way more in common with grunge’s aftermath than the epoch-making span that gave us Nirvana. The woozy exuberance of Great Grandpa’s twentysomething anthems owes a whole lot to Pinkerton and Keep It Like a Secret, and like those landmark albums, Plastic Cough is best enjoyed alone because you will absolutely be singing along with tuneless glee. by Chris Stamm