What does this excerpt from shakespeare’s twelfth night reveal about duke orsino?

duke: if music be the food of love, play on,
give me excess of it; that, surfeiting,
the appetite may sicken and so die.—
that strain again; —it had a dying fall;
o, it came o'er my ear like the sweet south,
that breathes upon a bank of violets,
stealing and giving odour.—enough; no more;
'tis not so sweet now as it was before.

one thousand and one nights, also known as arabian nights is a collection of stories whose basic structure is that of embedded narrative. this technique refers to a main story which works as the common frame - or framing narrative - for the other stories, and then this series of stories which are connected to the main one. this technique can also be referred to as a story within a story. the stories stem from the original tale, some begin and end on their own, some are connected to the previous or following one, by means of questions that are answered in the subsequent tale, or characters which reappear.