Question

1. using mathematical data is measure musician understand why certain combination notes sound harmonious. 2. math can help the understand how music is developed. 3. one about mathematical proportions is that they can be used to describe the relationships between different musical elements. 4. math contributes to understanding time signatures by helping musicians count and a musical

Explanation:

1. Mathematical data helps musicians understand why certain combinations of notes sound harmonious, so "measure" is appropriate as it relates to quantifying and understanding these combinations.
2. The idea that mathematical proportions can be used to describe relationships between musical elements is about "revolutionizing" the understanding and approach to music.
3. Mathematics contributes to understanding time - signatures by helping musicians count and divide, which is a key "takeaway" in the context of music and math connection.

Answer:

1. measure
2. revolutionizing
3. takeaway