If a band’s performance can be judged by bathroom graffiti, Keith Dust and Friend’s Homegrown debut last year was a huge success. “Keith Dust Rips” was scrawled in a women’s room stall at Carmody Irish Pub, where the band performed to an enthusiastic crowd. Soon after, Dust and bandmates Josh Palmer, Zach Dornfeld and Anthony Brown, dubbed themselves Fuzz Lung. Their sound is driven by Dust’s lo-fi, experimental aesthetic, as heard on several solo releases, including two singles out in the past year, precursors to a new album. In addition to several house and bar sets in the Twin Ports in the past year, the band performed its first out-of-town show in St. Paul in January.