Which artwork uses shading for a sense of roundness and was used by healers for special powers?

Which accidental cancels all other accidentals?

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me

Click the play button below to listen to an excerpt of the second movement from schubert's piano trio no. 1