Contrast, Balance, Emphasis, Movement, White Space, Proportion, Hierarchy, Repetition, Rhythm, Pattern, Unity, and Variety.
I could use these principles to make my art work more aesthetically pleasing and more optimistic to the viewers experience. Hope this helped :))
Answer: It's probably important to have realistic interpretation because then the artist's audience can actually relate to it.
The role of the artist has change ( if any) may have been the fact that now not only do they speak for themselves, their art now expresses other people's feelings too that can not express on their own.
.Explanation:
Vocal warm ups, breaks, tea with honey, practice in small portions, tone control