The term "post-progressive" identifies progressive rock that returns to its original principles while dissociating from 1970s prog styles, and may be located after 1978. Martin credits Roxy Music's Brian Eno as the sub-genre's most important catalyst, explaining that his 1973–77 output merged aspects of progressive rock with a prescient notion of new wave and punk. New wave, which surfaced around 1978–79 with some of the same attitudes and aesthetic as punk, was characterised by Martin as "progressive" multiplied by "punk". Bands in the genre tended to be less hostile towards progressive rock than the punks, and there were crossovers, such as Fripp and Eno's involvement with Talking Heads, and Yes' replacement of Rick Wakeman and Jon Anderson with the pop duo the Buggles. When King Crimson reformed in 1981, they released an album, "Discipline", which Macan says "inaugurated" the new post-progressive style. The new King Crimson line-up featured guitarist and vocalist Adrian Belew, who also collaborated with Talking Heads, playing live with the band and featuring on their 1980 album "Remain in Light". According to Martin, Talking Heads also created "a kind of new-wave music that was the perfect synthesis of punk urgency and attitude and progressive-rock sophistication and creativity. A good deal of the more interesting rock since that time is clearly 'post-Talking Heads' music, but this means that it is post-progressive rock as well."