Colleen (real name: Cécile Schott)’s story would be intriguing even if I didn’t love the music. She assembled her first release, 2005’s Everyone Alive Wants Answers by manipulating samples from old records — the sort of records that are usually filed in the “classical” section, whether or not the composers are strictly from the early 18th through early 19th centuries. That album’s extensive use of loops and the often prominent presence of vinyl surface noise gave it a superficial gloss of glitch-pop electronica, despite the unusual sound source choices.

It found considerable critical favor, and when in response Schott began touring, she felt that performing with a laptop would be too sterile and uninteresting, and opted to work live with acoustic instruments. The ensuing The Golden Morning Breaks was assembled from original source material, and much less reliant on looped sounds.

Les Ondes Silencieuses (The Silent Waves) is even sparer. My wonderful girlfriend observes that Erik Satie is perhaps the best touchpoint. I also hear some of Harry Partch’s fascination with the tonal qualities of unusual instruments, although Schott adds the dimension of manipulating the sound sources significantly after they are digitized. Since Schott’s compositions are assemblages, they don’t fetishize performance technique the way many “classical” recordings do. Her lack of “first chair” control over the clarinet (for example) imparts a certain unusual quality of fragility, (even, almost naivety) to her music.

Les Ondes Silencieuses has a very sculptural aspect. “Echoes and Coral” evokes images of moving slowly through some darkened, twisting gallery and seeing its bell notes revealed like hanging beacons as I turn corners. The concluding section of the baroque-influenced harpsichord piece “Le Labyrinthe,” despite its name, makes me think of circling a single, dense, complex, object and observing the play of light and shadow on its surface. (I noticed that when Schott talks about her creative process she sounds more than a little bit like my favorite sculptor, Sarah Sze)

Colleen’s music is often, but not always, pretty in a conventional, accessible, sense. There’s ample musical tension and discordance to keep it wll clear of new age/aural wallpaper territory. At its most intense, as on “Past the Long Black Land,” and “Le Bateau,” Schott’s viola de gamba even evokes a more stately version of John Cale’s mind-bending see-saws on “Black Angel’s Death Song.”

Throughout it’s a surprising, thoroughly rewarding musical experience and very highly recommended.