conventions to be repeated and imitated – the genre's premise had ceased to be "progressive". A direct reaction to prog came in the form of the punk movement, which rejected classical traditions, virtuosity, and textural complexity. Post-punk, which author Doyle Green characterizes "as a kind of progressive punk", was played by bands like Talking Heads, Pere Ubu, Public Image Ltd, and Joy Division. It differs from punk rock by balancing punk's energy and skepticism with a re-engagement with an art school consciousness, Dadaist experimentalism, and atmospheric, ambient soundscapes. It was also majorly influenced from world music, especially African and Asian traditions. In the same period, new wave music was more sophisticated in production terms than some contemporaneous progressive music, but was largely perceived as simplistic, and thus had little overt appeal to art music or art-music practice. Musicologist Bill Martin writes; "the [Talking] Heads 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." Soul and funk "Progressive soul" is used by Martin to refer to a musical development in which many African-American recording artists by the 1970s were creating music in a manner similar to progressive rock. This development inspired greater musical diversity and sophistication, ambitious lyricism, and conceptual album-oriented approach in black pop. Among the musicians at its forefront were Sly Stone, Stevie Wonder, Marvin Gaye, Curtis Mayfield, and George Clinton. According to Geoffrey Himes, "the short-lived progressive-soul movement flourished" from 1968 to 1973 and demonstrated "adventurous rock guitar, socially conscious lyrics and classic R&B melody". Similar to contemporaneous white prog musicians, progressive black musicians in the 1970s directed their creative control toward ideals of "individualism, artistic progression and writing for posterity", according to music academic Jay Keister, who notes that this pursuit sometimes conflicted with the collective political values of the Black Arts Movement. Among the stylistic characteristics shared from progressive rock in black progressive music of this period were extended composition, diverse musical appropriation, and recording music intended for listening rather than dancing. Rather than the song-based extended compositions and suites of progressive white music, black counterparts in the 1970s generally unified an extended recording with an underlying rhythmic groove. Instrumental textures were altered in order to signify a