Answer:
concept formation
Step-by-step explanation:
concept formation refers to the development of new understanding that we have over a certain category.
In Music for example, most people will categorized different types of musics based on characteristics that they have.
(Rap would like Spoken word poetry with added rhythm and flow, Ballad would be relatively slow in rhythm and the lyrics usually consist of either romantic or tragic story, etc.)
We held this categories in our head and will associate the music that we just heard with either of these categories.
But, when we hear a new kind of music that do not fit our category, we will force our self to create a new category in our head. When this happen, we developed a concept formation and our idea of what music is has expanded