This looks to be hopeful:
http://www.classictic.com/en/cities/Venice/15/Concerts/page_1.html?referrer=adwordsinevitably .....
11 Mar - I Musici Veneziani: Vivaldi - Four Seasons
Venue: Scuola Grande di San Teodoro, Sala 1
The famous Orchestra I Musici Veneziani is composed by the most accomplished virtuoses...
12 Mar - Virtuosi di Venezia: Vivaldi and Opera
Venue: Ateneo di San Basso, Sala 1
The Virtuosi di Venezia (San Marco Chamber Orchestra) play the most beautiful works of...
13 Mar - I Musici Veneziani: Baroque and Opera
Venue: Scuola Grande di San Teodoro, Sala 1
The famous Orchestra I Musici Veneziani is composed by the most accomplished virtuoses...
another chance ....
13 Mar - Virtuosi di Venezia: Vivaldi - Four Seasons
Venue: Ateneo di San Basso, Sala 1
With their music the Virtuosi di Venezia (San Marco Chamber Orchestra) let revive the...
14 Mar - Musica in Maschera: Opera and Ballet
Venue: Scuola Grande di San Giovanni Evangelista, Sala 1
Enjoy the enchanting opera arias and ballet with an orchestra,opera singers and dancers...
14 Mar - Virtuosi di Venezia: Vivaldi and Opera
Venue: Ateneo di San Basso, Sala 1
The Virtuosi di Venezia (San Marco Chamber Orchestra) play the most beautiful works of...
John W