The Fridman Gallery in Manhattan has recently uploaded a host of videos to Vimeo from its New Ear Festival, which ran in early January of this year. It had a great lineup, including Mary Lucier, Susie Ibarra, a workshop with the New York Theremin Society, and a screening of the documentary Milford Graves Full Mantis, about the accomplished percussionist. One highlight is a duo performance by frequent collaborators Stephen Vitiello and Taylor Deupree. The half-hour set is built around the pair’s modular synthesizers, though it also leaves room at the opening for Vitiello’s electric guitar, a mix of long dreamy lines and anxious, muted plucking. The marvel of the performance is the ambient nature of their effort, which is to say: their collaboration is, in effect, purposefully less than the sum of its parts. The work is focused on nuance, on slight variations of tonality and layering. Gorgeous stuff.