Last night’s Toronto Summer Music concert at Koerner Hall featured two works played by the TSM Festival Orchestra conducted by Nicolas Ellis . The first was Keiko Devaux’ Arras. It’s a sort of tone poem for chamber orchestra. The base material is drawn from Keiko’s family’s musical and other heritage; agriculture, weaving, plainsong, Buddhist chant, chansons, Japanese-American pop and so on. Samples are rewoven, looped, distorted etc and mixed to form a “tapestry” (hence the title). The effect is quite hypnotic and rather soothing though there’s not much to get a “handle” on, which may be the point.