Slope of ISC across repetition per piece differs with musical training. Change in ISC is measured as slope over 3 repeated exposures computed for each of 20 musical pieces (each square is a piece of music). (A) Slope is computed for ISC among participants with some musical training. (B) Slope computed for ISC among participants who had no training with a musical instrument. Trained participants show a dissociation between familiar and unfamiliar musical styles. Data combines Experiment 2 and 3.