Sound to Color & Shapes Synesthesia.
This is what music looks like to me, while listening to Swan Lake by Tchaikovsky.
Each color, bar, swoop, circle, white space, is all related to what I hear. I see classical music in a very different way than I see modern music. Moden music is more horizontal, where as classical music is more vertical. Stronger sounds coming from the top right, where as violions, and smoother notes appear from the bottom and move up.
The image here is not even a perfect duplicate of what I see. This image above would move, change color and glow with the beats of the music. Even while looking at this drawing, it still feels off somewhere.