In June 1822, Beethoven offered to his publisher Peters "Variations on a waltz for pianoforte alone (there are many)". In the autumn of the same year he was in negotiations with Diabelli, writing to him, "The fee for the Variat. should be 40 ducats at the most if they are worked out on as large a scale as planned, but if this should "not take place", it would be set for "less"". It was probably in February 1823 that Beethoven returned to the task of completing the set. By March or April 1823, the full set of thirty-three variations was finished. By April 30 a copy was ready to send to Ries in London.