S ounds ▁of ▁the ▁Se vent ies " ▁series ▁covered ▁a ▁specific ▁time ▁period , ▁including ▁individual ▁years ▁in ▁some ▁volumes , ▁and ▁different ▁parts ▁of ▁the ▁de cade ▁( for ▁instance , ▁the ▁early ▁ 1 9 7 0 s ) ▁in ▁others ; ▁in ▁addition , ▁some ▁volumes ▁covered ▁specific ▁tr ends , ▁such ▁as ▁music ▁popular ▁on ▁album - orient ed ▁rock ▁stations ▁on ▁the ▁FM ▁band . ▁Each ▁volume ▁was ▁issued ▁on ▁either ▁compact ▁disc , ▁c ass ette ▁or ▁( with ▁volumes ▁issued ▁prior ▁to ▁ 1 9 9 1 ) ▁vin yl ▁record . ▁Ind ividual ▁volumes ▁generally ▁contained ▁anywhere ▁between ▁ 1 8 ▁and ▁ 2 2 ▁tracks , ▁and ▁represented ▁the ▁highlight ed ▁time ▁period ' s ▁most ▁popular ▁and ▁not ew orth y ▁tracks . ▁Also ▁included ▁was ▁a ▁book let , ▁containing ▁l iner ▁notes ▁written ▁by ▁some ▁of ▁the ▁most ▁respect ed ▁histor ians ▁of ▁the ▁genre , ▁photograph s ▁of ▁the ▁artists , ▁and ▁information ▁on ▁the ▁songs ▁( writ ers , ▁perform ers ▁and ▁peak ▁position ▁on ▁Billboard ▁magazine ''' s ▁Billboard ▁Hot ▁ 1 0 0 ▁chart ). ▁ ▁History ▁ ▁" S ounds ▁of ▁the ▁Se vent ies " ▁was ▁first ▁issued ▁in ▁the ▁summer ▁of ▁ 1 9 8 9 , ▁with ▁the ▁first ▁album ▁covering ▁ 1 9 7 0 . ▁ ▁As ▁was ▁the ▁case ▁with ▁Time - Life ' s ▁other ▁series , ▁" S ounds ▁of ▁the ▁Se vent ies " ▁was ▁advert