https://www.youtube.com/watch?v=BJKYjXe6ACE
Konstantina Andritsou plays 'Capricho Arabe', by Francisco Tarrega [1852-1909].
https://en.wikipedia.org/wiki/Francisco_T%C3%A1rrega
The number of videos on Youtube for this piece is astounding, but this one takes it all.
That's a full size classical guitar.
Notice her right hand, it's in a perfect and proper position; she is doing rest strokes with her fingers, the proper
way to play scale passages on classical guitar.