In Prague in 1865 he directed his first opera, Johanna von Neapel, libretto by Otto Prechtler.
After the first performance there of Gounod's Faust, Prince Karl gave him permission to found a court orchestra.
He soon left Bucharest, invited to be director of opera in 1870 at the Royal Theatre in Turin.
[1][2] During the 1873 Vienna World's Fair, Sulzer directed concerts and operas in the Prater.
[2] Apart from operas, Sulzer composed orchestral works, piano music and songs.