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Please be advised that if you use the connect app, it doesn't always correctly parse links to lemmy posts. If they're not working for you, you can follow the whole plotline on my site. (These comics are in reverse chronological order, so start at the end and work backwards.)
I guess if you throw an egregious amount of magical power at a problem it DOES solve it!
In my mind, she's singing something like "Meadows of Heaven" by Nightwish.
Other candidates include:
Oh man, I just looked it up. It's beautiful!