This is not about politics; this is about genius.
I have subscribed to that young guitarist’s YouTube channel, purely on the basis of this. 
I… now have understanding of why all of my Facebook friends were posting about CPAC… Also a massive headache.
Lol that was genius!
Whose daughter, niece or sister got hired for the anthem gig?
Unwatchable. Gah. Make it stop.
I could only hang on long enough to confirm that the poor singer couldn’t stay in tune (in all fairness, everyone knows that solo a cappella can be a challenge that way for the amateur), and that the guitarist was actually having a go after the fact (and for the most part she was succeeding surprisingly well!) at the exercise of matching reality - seemingly on the fly, too, but I can’t be 100% sure. But I just couldn’t stay. What a trip. That takes an ear as well as chops. And apparently an iron constitution, too. I completely share Ben’s appreciation for the guitarist.
I just listened again - completely through, this time; must be the scar tissue - and I love how the guitarist threw in the Jeopardy! “thinking music” riff during the prolonged “freeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee”. Jazzy. Her slightly amused yet calmly masterful confidence is engaging, too, such as when she candidly registers the wry puzzlement or two (and rightly so: some of those sung notes were otherworldly and probably best left alone in their already-remarkable state).
I had watched and listened to the original, unaccompanied, live version a couple of times before stumbling across this video. In the original, it’s incredibly painful. What I find so amazingly wonderful about this young guitarist’s version is how, against all odds, she manages to make it all seem musical.
By the way, I have absolutely no doubt that that was not done “on the fly”. I’d be surprised if she didn’t put hours into working out that accompaniment. It’s so good it made me laugh out loud for sheer joy at Emily’s inventiveness.
From the first three notes! I just found a vid and wonder if I dare go further, bless her heart. I’m very sensitive, you know.
I really don´t know how to respond to that. . . . 
You are right (sic) Ben, the guitarist is quite good. 
Bob
The singer’s combination of brazen self-assurance of complete indifference to reality reminded me of someone…
There are a number of similar videos of keyboard players trying on the fly to make it work
She was obviously an anfi-solfa infiltrator.
Oh excellent! 
Yes, I’d seen a few. The others don’t manage to somehow make it work the way that Emily does here on guitar. That’s what impressed me. Because, let’s face it, it’s a nigh on impossible task.
Now! Now! This vocal artiste is quite obviously
an improvisational jazz singer of the highest order
demonstrating the subtleties of moving the tonal center around.
Here’s two of my favorite examples of that art.
http://wfte.org/Irish/out.mp3
http://wfte.org/Cat.mp3
Bloody hilarious. You can smell the reek of booze.
Everyone knows that’s how it’s supposed to be done. 
Thank you kindly! I consider this to be the definitive version of the tune.
Very happy to oblige!
Really the US national anthem is a terrible song. It’s like it was written to make singers look bad. It was supposedly kind of a drinking song in a club for young English rakes: it probably was written to make singers look bad so everyone could laugh. Whoever thought it should be the national anthem perpetuated the joke.
Here’s the history (a bit more fleshed out):
https://en.wikipedia.org/wiki/The_Anacreontic_Song
… and by which I have learned a new word: Contrafactum.
Ummm… What tune is it?
Just in case you’re serious, it’s supposed to be Wipe Out, first recorded in 1962 by The Surfaris. It was a one-hit wonder that became something of a musical icon in the States, at least. Here’s the original:
https://www.youtube.com/watch?v=p13yZAjhU0M
I believe that oleorezinator’s version is favored by Beelzebub.