The concert by members of the Phillips Camerata began with Fauré’s Theme and Variations for Piano, Op. 73, a work from 1895 that, in its delicate, shifting interplay of color and light, perhaps best reflected the pointillist spirit. Pianist Irina Nuzova turned in an utterly beguiling performance, with a deft, near-weightless touch that allowed each variation to blossom and evolve effortlessly into the next. It was a genuinely poetic performance, from a pianist of uncommon gifts.