The work in focus is Lo speziale (The Apothecary), a comic opera or dramma giocoso, in three acts, by Joseph Haydn, with a libretto by Carlo Goldoni. The soloists are the participants in the Opera Studio of the Teatro Nacional de São Carlos 2026/27, with stage and vocal direction by Jorge Vaz de Carvalho and musical direction by João Paulo Santos. 13 Nov: 8 pm | 15 Nov: 5:30 pm. Free entry subject to room capacity. Tickets available on the day itself at the Teatro box office from one hour before the event (up to 2 per person). Free.