Los Angeles possesses no shortage of things to hate, but the rock band Jeffertiti’s Nile isn’t one of ’em. Rather, they tap into the fertile, mystical “river of hypnotic sound” (their favored phrase and the title of their 2010 album) that has nourished many great psychedelic groups from the late ’60s onward. From spare, eerie, folk-inflected songcraft to torrential jams full of densely layered guitar Esperanto, Jeffertiti’s Nile tint their freak flag with many dazzling colors. (Comet Tavern, 922 E Pike St, www.comettavern.com, 9 pm, $8, 21+)