Lesson: Estudio (Study) No. 10, Op. 60 by Matteo Carcassi. From my PDF eBook: Ten Classical Etudes (Werner Guitar Editions). Includes fingering, notation only & notation + TAB edition. YouTube Performance and Lesson Link.
This is a wonderful study for the left hand position, slurs, and shifts. Playing thirds and slurs are excellent for your left hand position. Play on your fingertips and be economic in your movements and try to not tense up during the shifts. Aim for a clean and elegant execution.