Lesson: Study No.14, Op.60 by Matteo Carcassi. From my sheet music eBook (PDF): Ten Classical Etudes. Includes fingering, notation & notation + TAB edition. YouTube Video Lesson Link.
This etude develops free-stroke scale-work with bass notes and a focus on legato and position shifts. Do not add slurs to accomplish the legato. The shifts are somewhat difficult but remember that ‘the arm moves the hand’. Keep a good left hand position while the arm shifts the hand up or down the neck of the guitar.