What is the word for de-emphasizing parts of an artwork, so the emphasized parts will stand out more?

Ineed some on finding music. i have a nephew who is into rap, but when i find a rap song, it seems to either be too old for his taste or to him it isn't good enough. can someone suggest some good music for me to see if he likes it or not?

Albrecht durer, henri de toulouse-lautrec, and andy warhol used different techniques and process to get different effects in their prints. which print was made using lithography?

Periods in art and music history generally mark