WAS MUSIC THE LINK TO STONE TOOL TECHNOLOGY.

A research has suggested that ancient humans may have leap  forward into stone tool technology due to fact were budding musicians 1.75 million years ago.The brain circuits that led to the two sided tools and weapons-hand axes,cleavers,are the same as those playing a piano.This came about through volunteers learning to make the tools had a brain scan for research-UNIVERSITY OF EAST ANGLIA.