Name the five ways emphasis can be created?

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?

Atypical scale usually consists of one of pitches. 1. rhythm 2. octave 3. key 4. series

Name the painting above and its artist. what media was used to create this piece? why do you think the artist chose to use this media for this piece?