A motif that is inserted near the beginning and then assumes a new meaning later

Assumption is a motive that is inserted near the beginning and then assume new meaning later.

Explanation:

An assumption is a situation where we assume something later on the assumption may not be true. Doing assumption may not be correct always if we try to assume someone's feeling and stop communicating with them, it may lead to misunderstanding. As a result it may lead to fall in our self- confidence as well as it may lead to depression. We should always try to make the difference between reality and assumptions.

Concerto grosso was composed during the classical era. (sorry if i misspelt the name)

Answerstrophic and through-composed;