Abstract
The purpose of this study is to clarify how the mechanism of 'formation' on creative expression works through the learning process of making the accompaniment part of songs on discussions. The process of 'formations' on creative expression through the learning process of making the accompaniment part of songs was generally perceiving and feeling the contents of text and melody → the 'fomations' of harmonic structure → the 'formations' of accompaniment part → the constitutional 'formations' on whole piece. The connections of 'fomations' on student A・B were the 'formations' of harmonic structure → the 'fomlations' in contents of text → the 'formations' in the flow of melody → the 'fomlations' on reflecting the image of sound. In the 'formation' on student C・D between the introduction and the main part, there were the connections of the different image of sound through the listening of same musical performance → the similarity of pictorial image → the constitutional 'formation' on whole piece sensed the unity of image.
