This is a nice challenging guitar solo practice exercise for grade 3 level, which could be used in a guitar lesson, or for anyone learning on their own.
There are plenty of techniques, such as bends, legato (hammer ons and pull offs), vibrato, and other things to watch out for like staccato markings. The scale used is A blues.
This guitar solo was prepared as a practice exercise for learning to blues solo in the key of A. After a few exercises like this, students can then start to reuse the creative concepts and make their own improvisations and guitar solos.
As many blues songs are in the key of A, this could also help people more in general, or also provide a good practice exercise to anyone learning the blues. This guitar solo could be played with or without shuffle, and there are also suggested chords in the sheet music for an accompaniment.