One possible conclusion:
A lion cannot fly. A fugue flies. Therefore it is not organized according to the principles of a fugue.
A symphony modulates its Character, which a vicious Tiger would undertake upon a Hunt. I assume the same principle would hold for a lion, but there is no way to be sure.
A lion comes from the dust and returns to dust; life is the "development" section of the sonata form, presumably in the first movement. This implies that if a lion has exactly 2-5.5 or so afterlives, it very well could have the organization of the principles of a symphony.
But we can only be sure of the First Movement, the Sonata. So I answer, barring further understanding, the Sonata.
There are many different animals. Overall, in conclusion, I prefer the tiger to them though.