Do you have the quote for that? Did it really say the sound was "moving" like a single source travelling from place to place, or was it spreading to more places over time?
I'm not that good on Shakespeare references so I had to look that up.
https://www.gutenberg.org/files/1533/1533-h/1533-h.htm
Tomorrow, and tomorrow, and tomorrow,
Creeps in this petty pace from day to day,
To the last syllable of recorded time;
And all our yesterdays have lighted fools
The way to dusty death. Out, out, brief candle!
Life’s but a walking shadow; a poor player,
That struts and frets his hour upon the stage,
And then is heard no more: it is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.
It doesn't really fit with the song to me, besides a loose similarity about life being ephemeral - but this is regretful and the song is more joyous, about living on in memory.
I don't see any reason to call them that as an organisation. Unless I'm misinterpreting, they use that term as a short form for the Anamnesis Anyder, which is odd anyway because there are at least two different locations in Amaurot with the suffix - the other being the Akadaemia which seems to be the base for the Convocation.
I agree. It feels like every story that starts with a benevolent god-figure is guaranteed to have them turn out evil by the end, and sometimes it's just nice for them to actually be what they claim they are - or in Hydaelyn's case at this point, for her to retain her stated love for us even if she isn't exactly the goddess we were led to think she was.
I'm not sure why you're thinking Venat figures into the symbolism of the Eden fight - she's never talked about there. Ryne's form is just representing Hydaelyn's Light as opposed to Shiva's ice, perhaps with a nod back to her blonde appearance while she was Minfilia's vessel.