Typically, it makes sense to split up many questions into multiple question posts. It helps future visitors find their answers faster if they have the same question. This makes sense especially if you are asking about different aspects of the notation that are orthogonal to each other.
This does not mean every question needs a separate post. For example if you are asking about symbol X, one question containing the following is fine:
- What is X symbol?
- What does X convey notation wise?
- How do I convey X on instrument Y?
As you can see, all these question pertain to one symbol so it makes sense to keep them together.