Which opera has more acts, Le prophète or La scala di seta?
La scala di seta La scala di seta (The Silken Ladder or Die seidene Leiter) is an operatic "farsa comica" in one act by Gioachino Rossini to a libretto by Giuseppe Maria Foppa. It was first performed in Venice, Italy, at the Teatro San Moisè on 9 May 1812. The overture has been frequently recorded and continues to be featured in the modern concert repertoire.
Artaserse (Hasse) Artaserse is an opera ("dramma per musica") in three acts composed by Johann Adolph Hasse to an Italian libretto adapted from that by Metastasio by Giovanni Boldini. It premiered at the Teatro di San Giovanni Grisostomo in Venice on 11 February 1730, shortly after the libretto's first setting by Leonardo Vinci premiered in Rome 6 days earlier. Metastasio's libretto, "Artaserse", has been used in more than 90 works. Hasse himself would later re-work the score for performances at the Opernhaus am Zwinger in Dresden (1740) and the Teatro di San Carlo in Naples (1760).