On their brand-new, eponymous and first official LP, Houston’s Ancient Cat Society seems to exist in the past and present all at once. Within the contemporary arrangements of these seemingly old-time folk tunes lie some of Sergio Trevino and Haley Barnes’s strongest songwriting to date. Born from the ranks of Buxton and Dollie Barnes, among other local indie-folk groups of note, ACS set themselves apart with image-rich songwriting and three-part harmonies that at times almost sound like listening to one voice. Although this new LP is mostly folky tunes, do not underestimate the trio’s power to surprise with the straight-up R&B arrangement of “Why Are You Getting Married?” or “Do You Feel,” the catchiest song on the album. Notwithstanding the top-notch production by SugarHill’s Steve Christensen, once that modern veil is lifted listeners will find themselves somewhere very old, almost timeless, yet very familiar.