Composer Giacomo Puccini Librettists Luigi Illica and Giuseppe Giacosa Based On the drama La Tosca by Victorien Sardou Company San Francisco Opera Association Location San Francisco, CA Venue Dreamland Auditorium Season 1928 Language Italian Creative/Crew Conductor Gaetano Merola Chorus Master Antonio Dell'Orefice Stage and technical director Armando Agnini Cast Floria Tosca Maria Jeritza Mario Cavaradossi Armand Tokatyan(9/19) Gennaro Barra(9/29) Baron Scarpia Lawrence Tibbett(9/19; role debut) Giuseppe Danise(9/29) Spoletta Angelo Bada Cesare Angelotti Louis D'Angelo Sciarrone Louis D'Angelo Sacristan Pompilio Malatesta Shepherd Hazel Huff Jailer Evaristo Alibertini Show Dates Wed, Sep 19 1928, 8pm Sat, Sep 29 1928, 2:15pm Time and Place Rome Scenes Act I -- Interior of the Church of St. Andrea in Rome Act II -- A Room in Scarpia's Apartments in the Farnese Palace Act III -- A Terrace of San Angelo Castle, outside the Cavaradossi prison. A view of Rome by night. Notes The first Baron Scarpia of Lawrence Tibbett's career.