Here are the best answers for each of your questions:
Question 22 What can Melody be broken down into?
- Option B: Phrases
Question 23 The smallest musical unit.
- Option B: Motive
Question 24 What vertical aspect is used to accompany a melody?
- Option C: Harmony
Question 25 What is referred to as the pitches that are used in a song?
- Option B: Scale
Feel free to ask if you have any more questions!