The first section, of three, opens with low jet engine-like rumblings, interrupted by loud, short sounds with such short decays that I still hesitate to guess whether they’re metal or glass. Which is OK, as that gives you as good a sense of their quality as anything else. I was most taken by the contrast of low drones and high, sharp mechanical clattering. (Small sounds, greatly amplified.) By the end of this section, contrabass sounds have taken over, and as one remembers the opening, perhaps by starting the CD over, one starts to suspect that most of the sounds have originated with the bass, a lovely instrument to be sure, half of whose noises sound electronic already. (Check out the acoustic, unaltered screeching in the upper register about a minute into section two.)

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