Ok, we don't know they had rock and roll, but definitely music of some sort.
Scientists have long theorized that the motivating force behind the establishment of the first civilizations was warfare. Essentially, people came together in the first cities to collectively wage war or defend themselves against aggressors. But recent discoveries related to the oldest known city in the Western Hemisphere belie this theory.
Caral, in western Peru, appears to be the third oldest civilization in the world, behind only Sumer and Egypt. Archaeologists have found no trace of weapons or military defenses. What they have found is a lot of musical instruments, evidence of cocaine use, and aphrodisiacs. Evidently the people of Caral grew cotton, used the cotton to make nets, and traded the nets to fishermen for seafood. They also traded textiles to rainforest people for the drugs, and had craftsmen who manufactured musical instruments, and possibly professional musicians.
