Performance and Lesson for Study No.8 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 of all 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.
I would place this study around the grade 2 level depending on your tempo. Keep in mind that this study is the same chord progression as No.9 so, although easier, it sets you up for success in No.9. Here’s the YouTube Link for this lesson in case you want to watch it there.