Figure 1: Composition of self-music therapy training music. Each self-music therapy training music type consisted of a single set of 48 bars (measures) of basic music (A). Six bars randomly selected from the music for modulation (A', A”) were replaced and used as the stimulus in the same position as in the basic music to induce musical expectancy violations. Only one bar was changed for each phrase (4 bars), and a three-bar gap was maintained between the changed bars. The composition of the stimulated music differed in each of the basic music patterns.