1. O one surpassing in all branches of mathematics
Of music, geometry, and figures

2. Tell me what thing equals half of it for a third
Of an eighth of it without complications

3. And if its second and its fifth are added
To the count of its first two halves in total

4. It becomes evidence of a shape whose sections
Are a type of ingenious music

5. Bounded on both sides by a semicircle
And a line enclosing it without neglect