The King explodes in emotional distress, praying to God for pity, help and patience but denies that he will allow this to overcome him. "No, I'll not weep", but then of course weeps uncontrollably and is rushed away. There is a lot of irony in this scene as well as internal struggle.

The words weak are continuously tossed around in this play, most by his daughters but this description doesn't hold value in the physical sense but in the mental sense. The daughters both describe their father as weak, but what they mean is mentally weaken. The king appears in decent physical health despite his age, but his stress level and tempers are what weaken him

We begin to see just how prideful the King is and how it affects his judgement poorly. Regan is trying to persuade her father to forgive her sister, because she see's what could happen to her if she were to mess up. Her father loses his temper and claims he could never treat Regan that way (but does later in the scene.)

I think its important to remember the authorial intention of the piece as well. If the author meant the verse to be lyrical it would have a much different impact than if the author meant the verse to merely be read. While we can argue that intention doesn't overwhelm the impact, it's still important to understand what the intention was to begin with.

I don't believe in equating poetry to music, even though I understand the similarities between them. Yes, poetry should have an aesthetic element that pleases the ear or in some cases the eye, however music is more complex than just verse. Music is a binding of two aesthetic elements, verse and sound, where poetry can just be read silently. You could argue that you can read music and "hear" it inside your head, just as you do poetry, but that requires technical training and poetry does not.

The Monk the narrator describes has some questionable moral judgments as well, these to me are more apparent than the nun. The monk participates in hunting, which is highly taboo for his position as a monk. He even admits to knowing he shouldn't, but does so any ways. This admission of awareness kinda makes the monk even more capable of bad moral judgments.

The nun is similar to each of the characters described in the piece, the narrator gives good remarks about the nun, describing her beauty and education but also makes some sly comments things that the reader might make judgements about, such as her taste in fine foods or how she shows empathy toward animals but doesnt show it for people. These aren't dangerous judgements as so much they are eyebrow raising. I think thats the purpose of these characters, to make the reader double check on the authenticity of the characters ascribed "good moral position".