Abstract
According to Meyer, musical emotion is elicited by deviations from musical expecta-
tion. We assume such deviations as a musical complexity. In this study, we focused
on the structure of melodies, and created complexities built in either or both types
of structures: one made of notes and the other made of grouping hierarchic elements,
which we called level 1 structure and level 2 structure. We conducted a psychological
experiment revealing relationships between emotion and musical complexities. Par-
ticipants assessed musical emotions (GEMS-9) and feeling that something is wrong as
sensory psychological quantity of complexities. As the results of ANOVAs, we found
that destructions of both level 1 structure and level 2 structure effected feeling that
something is wrong. Moreover, destructions of level 2 structure effected tension, sad-
ness,andtranscendence of musical emotions. These results indicate that manipulating
destructions level of musical structure might control specific musical emotions.
