Kyle Bobby Dunn + Dither

Two very different takes on postmodernist electric guitar come into view with tonight's opening installment of the Music at First series. Kyle Bobby Dunn, a mesmerizing ambient artist normally heard solo, teams up with crack chamber players for music likely to resemble the reveries on his recent double CD, A Young Person's Guide to Kyle Bobby Dunn. Guitar quartet Dither opens with sounds that span from constructivist debris to quirky genre allusion and beyond.