The basso continuo refers to the collection of musical instruments used to accompany a solo singer in an opera. AAB stands for the melody's bar form.
What is instruments?
Tools or gadgets used for measuring, science, or artistic endeavors are referred to as “instruments.”
A system of accompaniment that is somewhat improvised and played on a bass line—typically on a keyboard instrument—is known as basso continuo. A bar is a brief section of music that contains several beats.
As a result, option 1. (c), 2. (c) is correct.
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