dekmantel regular matrixxman returns with the third, and final instalment in the sector series, part iii: polyphony. in this triptych, the producer from san fransisco sets out to highlight the key components behind the sounds and style of techno, exploring the range within the confines of a particular limitation. following parts i and ii, which looked at rhythm, and acid, charles mccloud duff charters the realm of polyphony with four, meticulously produced techno tracks, expanding his repertoire of cult, dancefloor music.