Part of DeGrazia's thesis included the 'Color Machine' which he built to measure the different levels of tone and pitch when music was being played. DeGrazia assigned specific emotions, shapes, and colors to his 'Color Music Pattern Test'. He gave the test to over 350 students at the University of Arizona. He made each student listen to classical music, including Stravinsky's Nightingale, and Beethoven's Symphony #8. He would stop the music in certain intervals and ask each student what colors and shapes they saw. They would then draw what shapes they had seen.