Alternately menacing and amorous, Thoth and Lila’Angelique of Tribal Baroque sang, fiddled, percussed, and danced for an appreciative and enthusiastic crowd at Union Chapel in Oak Bluffs on Sunday night. They whirled and circled each other, sometimes warily and sometimes flirtatiously, in a display that was part rite of spring, part tender seduction and part purely an exercise in the joy of making sounds and movements.

Their energy made the performers seem like buskers on a city square, and I felt as though I should drop money in a hat.

Tribal Baroque’s original music was tailored to the performers’ vocal strengths. The husband and wife duo both have rich and expressive voices that cover a wide range. Thoth filled the chapel with a velvety baritone that he could rapidly change to snarling or rasping. He also displayed a clear, strong countertenor voice that he used to great effect.

Lila’Angelique poured out breathtaking streams of bell-like tones at the highest reaches of the soprano range without apparent effort. The two sang to each other and to the audience in an invented language that was as fanciful as their costumes. And their costumes heightened the dramatic tension.

The image of rococo artifice, Lila’Angelique wore a parody of an 18th century gown with applied artificial blooms. A pale flower also adorned the elaborately coiffed pink hair that crowned her white dress and alabaster skin. Glittering facial jewelry highlighted elaborate, delicately painted lines around her eyes.

Thoth’s shaved head, with one preserved tuft sprouting a skinny ponytail, gave him a demonic look. He appeared a dark and dangerous spirit that had emerged from the forest for revels, and he met both his antithesis and match in the hyper-refined pink and white Lila’Angelique. The confrontation took place around a small collection of instruments in the center of the floor that could have been a bonfire.

Union Chapel’s acoustics were perfectly suited to the intimacy of the performance. Tribal Baroque was brought to Martha’s Vineyard by Wendy Taucher, who has also staged operas at Featherstone in recent summers. The startling performance provided something completely different to wind down the season.

Gregory Palermo lives in Edgartown.