The Sea And Cake’s ninth and latest collection of songs, The Moonlight Butterfly, welcomes new listeners and veteran fans with equal accessibility. Though the Chicago-based indie group has credited a wide range of influences since its 1994 self-titled debut—citing everything from Brazil to Africa to US Top 40 and back again—the band’s lengthy discography has nonetheless maintained a certain relentless sameness in sound. That’s not to say the music is all peaceful fluff, though; The Sea And Cake makes several attempts to shift between soft, vague harmonies and hard, concrete patterns. The 10-minute long track “Inn Keeping,” for example, slowly meanders from the sparseness of front man Sam Prekop’s sleepy voice to a slightly fuller instrumentation and then flattens itself out for most of the tune’s last half. Though the group’s career reveals a band steadfast in its ways, the consistency of The Sea And Cake at least helps the band to seem youthful. The Sea and Cake performs with Brokeback at 8 p.m. at Union Transfer; tickets to the all-ages show are $15-$18. —Marielle Mondon