Go to 3.35 for the Fugue, that's the best part.
I know classical guitar well. She is VERY, VERY good. Picked the video out at random, don't know anything about her, etc, but she plays the Fugue with excellent technique.
It's from a Johann Sebastian Bach Suite for Solo Violin. The Fugue works well on guitar. On violin it gets a bit scratchy.
And this, a piano piece by Isaac Albeniz, whose many piano compositions somehow work better on guitar than piano. Very difficult stuff to play:https://www.youtube.com/watch?v=inBKFMB-yPg
You may recognize the theme, the Doors 'Spanish Caravan' was based on it with Robbie Krieger playing it in a flamenco guitar style.
Yep, it ain't all fun & blues.