In the realm of indie pop, few bands are as idiosyncratic as Los Campesinos!, the Welsh seven-piece noted for their musical ambition and hyper-literate lyrics. They released one EP and two albums between 2007 and 2008, with their signature song “You! Me! Dancing!” encapsulating their penchant for wit, exuberance, and just plain sounding like a group of people having a great time playing music together. While they haven’t remained quite that prolific, they’ve built a solid discography that includes not one less-than-great record. On songs like 2013’s “Avocado, Baby,” they’ve shown they can still access the bursting energy that first endeared them to so many. For their latest album, Sick Scenes, Los Campesinos! reconnected with go-to producer John Goodmanson, best known for his work with Sleater-Kinney and Death Cab for Cutie. The singles that preceded the full-length — “I Broke Up in Amarante,” “5 Flucloxacillin,” and “The Fall of Home” — suggested the band’s batting average would remain high, and the album’s release last week only confirmed that. New York rockers Crying open.