This first part of the Tetralogy, which is the prologue, was not divided into acts.
The work of Gringore, just noticed, forms part of such a tetralogy.
The first act of Siegfried is one of the most dramatic in the Tetralogy.
He must be competently instructed in the tetralogy, or first four rules.
He saw what was happening there with regard to matters of art, and that he could ...