Greta Kline started as one of those absurdly prolific Bandcamp bedroom artists, recording as Frankie Cosmos and sometimes under other names. She’s since slowed down, but her indie pop has remained honest, understated, and unfussy. The era of full-band Frankie Cosmos albums began in 2014 with Zentropy, 2016’s Next Thing proved the real breakthrough, and with the Sub Pop Records debut, Vessel, the project leveled up again. Though it’s less catchy than Next Thing, the understated aspects of Kline’s songwriting are still charming. This show is part of Radio K’s 25th Birthday. With Lomelda and Stef Chura.