Sebastian Lee is one of the outstanding figures of 19th-century German cello literature, whose oeuvre includes a significant number of pedagogical works. His Op. 70 collection of studies supports the development of beginner cellists from the very first years of music school. The etudes have been carefully edited by Árpád Pejtsik, who provided each piece with preparatory exercises and practical guidance to ensure correct technical execution and the acquisition of solid foundational skills.