Popper, 40 Studies for Cello Op. 73 (Ricordi)

David Popper, a contemporary of Liszt and Brahms, composed the "40 Studies" to help cellists improve their technique. These studies are essential for intermediate to advanced cellists to develop arm muscles, finger agility, and bowing techniques. Popper wrote them while teaching at the Royal Conservatory in Budapest in the late 1890s and first published them between 1901-05.