Can you play guitar without nails?
Can you play classical guitar with no fingernails? Short answer: Yes, absolutely. No nails required.
Are nails required for guitar?
Classical guitar nails are not absolutely necessary to playing guitar. You can choose to play without nails. In fact, traditional lute technique uses short or no nails. So there is a historical basis for playing without nails as well.
Can you tremolo without nails?
Do you need fingernails to play tremolo like in Recuerdos de la Alhamnbra ? You can play the notes, but unless you have some gnarly callouses, you will have a softer, rounded tone to the tremolo. It might sound ok, but not the typical tone.