Answer:
None of the answers
Explanation:
Classical music emphasis on beauty, elegance and balance. More variety and contrast within a piece than Baroque (dynamics, instruments, pitch, tempo, key, mood and timbre.
Choral work means choir or group of Choristers work
If you are talking about arks for construction, the answer would be "The point or line at which an arch or vault begins to curve".
With a good embouchure and steady airflow?