“The experiment is always about whether something will hold,” says Toronto-based US composer Linda Catlin Smith, whose music tests how sounds can be longer or shorter, thicker or thinner, higher or lower, more distant or more intimate. The results are beautiful: poised and thoughtful, never forced. Often the music is soft but tactile — Catlin Smith lets us sit with the texture of the sounds, like feeling fabric between the fingers. This album of chamber music from the past two decades follows last year’s Dirt Road, also on Another Timbre. Drifter features Montréal’s Quatuor Bozzini playing the lilting Gondola, the Turner-inspired Folkestone and the Piano Quintet with Philip Thomas in graceful form; members of the ensemble Apartment House bring lonely elegance to Cantilena for viola and vibraphone and to the lissom title track for piano and guitar.