“Alchemy” aptly describes what the duo of Eris Drew and Octo Octa regularly do behind the decks when they lock in for their legendary B2Bs to channel the holy fire that Drew calls “the Motherbeat.” The couple have made a home in a log cabin in rural New Hampshire, where they keep a massive sound system and hone a shared philosophy of raving, psychedelics, and queer liberation. For the pair’s self-titled first collaborative album as Alchemical Sisters, they turned their cabin into a cozy studio, took mushrooms, and channeled their flow state into eight hardware-heavy tracks that spin through psychedelic vortexes of acid house, ’90s big beat, and maximalist gusto. Think galloping breakbeats, acid basslines, turntable scratches, a harmonica sample pulled like taffy, and the sounds of sitar and bagpipes on “Song for New Hampshire,” an anthem for the chill-out lounge of an enchanted forest rave.