▁cont empl ation ▁rather ▁than ▁for ▁dan cing , ▁and ▁is ▁often ▁distinguished ▁by ▁the ▁use ▁of ▁electronic ▁effects ▁and ▁easy ▁listening ▁text ures ▁far ▁removed ▁from ▁the ▁prop uls ive ▁rh yth ms ▁of ▁early ▁rock . ▁The ▁term ▁may ▁sometimes ▁be ▁used ▁inter change ably ▁with ▁" progress ive ▁rock ", ▁though ▁the ▁latter ▁is ▁instead ▁character ized ▁in ▁particular ▁by ▁its ▁employ ment ▁of ▁class ically ▁trained ▁instrument al ▁technique ▁and ▁sym ph onic ▁text ures . ▁ ▁The ▁genre ' s ▁greatest ▁level ▁of ▁popular ity ▁was ▁in ▁the ▁early ▁ 1 9 7 0 s ▁through ▁British ▁artists . ▁The ▁music , ▁as ▁well ▁as ▁the ▁the atr ical ▁nature ▁of ▁performances ▁associated ▁with ▁the ▁genre , ▁was ▁able ▁to ▁appeal ▁to ▁artist ically ▁incl ined ▁ad oles c ents ▁and ▁younger ▁adult s , ▁especially ▁due ▁to ▁its ▁virt u os ity ▁and ▁musical / ly rical ▁complexity . ▁Art ▁rock ▁is ▁most ▁associated ▁with ▁a ▁certain ▁period ▁of ▁rock ▁music , ▁beginning ▁in ▁ 1 9 6 6 – 6 7 ▁and ▁ending ▁with ▁the ▁arrival ▁of ▁punk ▁in ▁the ▁mid ▁ 1 9 7 0 s . ▁ ▁After , ▁the ▁genre ▁would ▁be ▁inf used ▁within ▁later ▁popular ▁music ▁gen res ▁of ▁the ▁ 1 9 7 0 s – 9 0 s . ▁ ▁De fin itions ▁ ▁Crit ic ▁John ▁Rock well ▁says ▁that ▁art ▁rock ▁is ▁one ▁of ▁rock ' s ▁most ▁wide - r anging ▁and ▁ec lect ic ▁gen