Once & Future Band’s debut album is complex and cerebral, a chimera of lounge vocals, bubblegum harmonies, prog backbone, electro-jazz jammage, New York lyricism and British psych-rock flourishes. Its modes shift constantly, a wonder of composition and studiocraft. “How Does It Make You Feel” blasts in like Liverpool, with Beach Boys harmonies. The bass and drums feel front and center, with ever-changing keyboard tones in the lead and guitars adding flavor. On “I’ll Be Fine,” Joel Robinow’s vocals ramp up like Ziggy Stardust: “You’re the kind of girl who makes me disappear/ in our living room/ you just look at me and I’m not there.” The feel is theatrical. It’s rock opera. The song keeps shifting into different soundscapes as new guitar and keyboard sounds sweep in in waves. On “Rolando,” a model-airplane-building man-child huffs the glue for escape; the music recreates the dream feel of his high. The voice in the post-cataclysmic prog-jazz jam “Standing in the Wake of Violence” looks around at piles of rubble that used to be protective walls. Now, the stones are driving him mad. This is dark and unsettling music, in that grand psychedelic tradition. It’s one for the headphones.