 The influence of Mozart, who in 1787 improvised on the Strahov organ, is perceptible in Kuchař's music and it also led Kuchař to Freemasonry in Prague.From 1791, he performed as harpsichordist of the "Pražská operní společnost" (Prague Opera Society).On September 6, 1791, he likely played at the premiere of Mozart's opera "La clemenza di Tito".