Sprechen Hoeren Sprechen_hueber

Johann Christian Bach's op 17 sonata's were written considerably later than the op 5 and therefore display a more mature style. The op 5 published for harpdichord or fortepiano were keen to dazilingly exploit the possibilities of the the new piano, the op 17 were written when the piano was more comfortably established (Broadwood was now producing pianos almost exclusively the last harpsichord being produced in 1783), and therefore do not strive to employ such fantastic devices such as extreme contrasts of dynamics and orchestral effects as their predecessors.