Jacques Offenbach was not only one of the most successful composers of his time, but also an incomparable virtuoso on the cello - his ravishing playing in the salons of Paris caused many a swoon among the (female) audience. Under the opus numbers 49 to 54, he also presented a cello method in the form of duets of progressive difficulty. Offenbach would not be himself if the work did not meet the very highest standards both from an educational and a musical-compositional point of view, with an alw...