From Longman Dictionary of Contemporary Englishrock musicˈrock ˌmusic noun [uncountable] APMa type of popular modern music with a strong loud beat, played using guitars and drums
Examples from the Corpus
rock music• And rock music has to be like that.• Loud rock music bellows from the speakers.• Loud rock music blasting away at these old guys.• And who really needs rock music, hair coloring and makeup anyway?• Dublin's brand of rock music merges at times with traditional music, and the studios are used for both styles.• A grease-smeared youth answered the door, accompanied by a gust of rock music and an aroma of gravy.• Some one was playing rock music in the flat above and the faint throb hovered in the sitting-room.• The rhythm of the rock music thumped relentlessly. 