Which of the following artists sometimes deviated from the nonrepresentational form characteristic of abstract expressionism? hurry!

They are not affected because the paint drys with the plaster on the wall, effectively making the fresco part of the wall.

Artists usually use musical imagery to make their compositions more unique and alive. imagery in music used to "show" music. because of that listeners feel what happens. they see music like complete composition. they hear sounds, they feel movement, they see a picture. it makes music deep. that's why  musical imagery is very important and is used by artists so frequently.