Underground Portland, ME singer-songwriter Jeff Beam has released a handful of CD-Rs, digital EPs and cassettes over the past half-decade or so, and he swings through Athens with copies of last year’s Is Believed to Have Been in tow. That record is an appealingly cloudy collection of nine psych-speckled tunes inspired by dense, Dirty Projectors-style indie rock and the lo-fi psych-folk of Elephant 6. Speaking of that storied arts collective, Beam will be joined on Tuesday’s Flicker bill by Robert Schneider—an E6 founding father known for fronting the Apples in Stereo and producing landmark albums by Neutral Milk Hotel and the Olivia Tremor Control—and French Exit, a local project led by latter-period OTC member AJ Griffin.