Complex sentence: In a letter to Gottfried from 15 January 1787, Mozart praises Franziska's studiousness and diligence, and he dedicated a considerable number of works to the Jacquin family, most notably this trio.
Split into simpler sentences: In a letter to Gottfried from 15 January 1787, Mozart praises Franziska's studiousness and diligence. Mozart dedicated a number of works to the Jacquin family, including this trio.