A surprising suite of new material from popular kankyō ongaku vanguard Yutaka Hirose, 'Voices' is a chaotic collage of field recordings, rickety beatbox loops, rough-textured samples and psychedelic synths - ambient it ain't.

It's fascinating to hear 'Voices' because when you've not seen much new material emerge from an artist since their classic era, the expectation is that they've simply stopped producing. Hirose is best known for his 1986-released 'Nova' album, a record commissioned by the Misawa Home Corporation for use in their prefab houses and rediscovered online (like Midori Takada's 'Through the Looking Glass' or Hiroshi Yoshimura's 'Green') decades later. WRWTFWW Records already reissued that record, bundling it with almost an hour of extra material, and followed it up with an additional archive of Hirose's '80s recordings, but 'Voices' brings us right into the present. So it shouldn't be too surprising that the album is markedly different from its predecessors.

You'll get a good idea of what to expect with the 12-minute opener 'Library', a track that sounds like Hirose is scrubbing through his archive of sounds, layering public transport ambiance with movie samples, off-hand vocal takes, radio chatter, jazz stems and squelchy back-room rhythms. Like Akira Umeda's similarly spannered 'Gueixa', it's a head-melting stream-of-consciousness experience, not really music so much as a vortex of sound. Hirose's four 'The Other Side' tracks are more straightforward balearic techno experiments offset by peculiar environmental recordings, and these are peppered through the album - no doubt to lighten the mood. Elsewhere, Hirose gets into grinding, ritualistic IDM on 'Uprising', and threads brittle beats and acidic synths through a dense fog of bird calls and chat on 'Mixture'. He's been busy.