Conversation so far:
What happened in 1834 to Giuseppe Verdi?
In 1834, Giuseppe Verdi obtained the post of maestro di musica.
What did Giuseppe Verdi do next after gaining the post of maestro di musica at Busseto's Philharmonic Society?
Giuseppe Verdi taught, gave lessons, and conducted the Philharmonic Society in Busseto.
What did Giuseppe Verdi do after the Philharmonic Society position?
In 1835 Giuseppe Verdi became director of the Busseto school with a three-year contract.
Did Giuseppe Verdi have any accomplishments during this time as director of the Busseto school?
Giuseppe Verdi's first opera, Oberto was performed 13 times in Milan in 1839.
Did Giuseppe Verdi do any other operas besides Oberto?
Giuseppe Verdi composed Nabucco and Otello as his other notable operas.

Question: what was it now called?
Self-contained rewrite: What was Giuseppe Verdi's Antonio Piazza's Rochester-influenced opera now called?