In the U.S., the music was being developed to create a more sophisticated sound,[citation needed] moving beyond just drum loops and short samples. In Chicago, Marshall Jefferson had formed the house group Ten City Byron Burke, Byron Stingily & Herb Lawson(from "intensity"). New York–based performers such as Mateo & Matos and Blaze had slickly produced disco house tracks. In Detroit a proto-techno music sound began to emerge with the recordings of Juan Atkins, Derrick May and Kevin Saunderson.
what group did Marshall Jefferson form? what sound emerged in Detroit with the recordings of juan atkins and derrick may? where were mateo & matos based? where was marshall jefferson based? what sound did US house music move beyond in the late 80s?