Segovia No.5 & Segovia No.6
For instance, two of the most well-known pieces of that collection are the Study in B minor (Segovia No.5) and the Study in D Major (Segovia No.6).
Both of these studies come from Sor’s Op. 35, which bears the title (in French in the original) 24 Exercices très faciles, or 24 Very Easy Exercises.
What many guitarists have learned, however, is that these are in fact not easy pieces at all.
They are challenging in so many ways, but primarily in the musical demands they place on the performer.