Progressive Rock(One of the music genres that appears under Genre classification in Windows Media Player library. Based on ID3 standard tagging format for MP3 audio files. Winamp genre ID # 92)
prog(Progressive rock (shortened as prog rock or simply prog; sometimes conflated with art rock) is a broad genre of rock music[8] that developed in the United Kingdom and United States through the mid- to late 1960s, peaking in the early 1970s. wikipedia.org'More)
wikipedia.org 'More)