**Beethoven's teacher as a boy, Christian-Gottlob Neefe (who came from Leipzig), made sure that Beethoven played Bach's Well-Tempered Clavier; the young genius had memorized all 48 by the age of 12! | **Beethoven's teacher as a boy, Christian-Gottlob Neefe (who came from Leipzig), made sure that Beethoven played Bach's Well-Tempered Clavier; the young genius had memorized all 48 by the age of 12! |