Local bakeries in Venice usually always have the traditional baicoli biscuit for sale for those who enjoy a sweet treat on holiday!
They received their name because of their shape which resembles the lagoon basses.
Antonio Vivaldi was born in 1678 in Venice and started teaching the violin at the Ospedale della Pieta in 1703. His Baroque works allowed him to gain recognition and respect in the city and around the world.
The church of Ospedale della Pieta holds frequent mass services and even some music programs of Baroque style to this day, so it would be interesting to attend some of their events while on your trip in Venice.