Beethoven wrote several works for mandolin and piano for Countess
Josephine of Clary-Aldringen, who played the mandolin. Four of these
works are still extant and have been arranged by Julius Berger for cello
In addition to many performance pieces for cello, Kummer composed numerous studies and easy pieces such as
'12 Duets for 2 Violoncellos' Op. 105. They are one-movement pieces
which demand cantabile and concertante playing at a moderate level of
difficulty and are the ideal introduction to chamber music playing.