Well i would say start off by listening to pop music and reading the lyrics on it and the rhythms of the beats on sound then just paint what you feel all of the words beats and sound you think it all looks like
First you need to study up on pop music if your not familiar with it. Then maybe you could paint a street as the background for the painting. Then you could paint the music notes on a corner of the canvas. Then you could paint a stereo on a bench on the street. And you could make a gray brick wall and paint graffiti on it.
