Performance and Lesson for Study No.13 in C Major, Op.60 by Fernando Sor (1778–1839). This is from my PDF or hardcopy sheet music or tab edition for classical guitar: 25 Progressive Studies, Op.60 by Fernando Sor.
Fernando Sor’s Op.60 is one of the most famous etude collections in the classical guitar repertoire. Each study covers a different pedagogical concept but the primary goal of the collection as a whole is the ability to play legato across various textures.
Although more difficult than Study 10-12, I would still place this study around the grade 4 level depending on your tempo. Here’s the YouTube Link for this lesson if you want to watch it there.
This lesson reminded me of “La Paloma” which I believe is all thirds and sixths. In addition, it has the rhythmic challenge of distinguishing sixteenths from triplets and from eights. You can also play it in various locations on the neck. I think it would be a good piece to run over in the future. I enjoy your site very much. Thank you.