The 40 selected contestants must have prepared 4 opera arias in their original language. They may optionally prepare 2 Zarzuela arias. In this first round, each contestant will sing 2 arias from among the 4 arias prepared. The first aria will be chosen by the contestant and the second aria will be chosen for the contestants by the official jury. The Zarzuela aria will also be requested by the Jury in case the contestants have chosen to participate in this category. The Jury will audition 20 contestants on July 21st and 20 others on July 22nd. On the evening of July 22nd. the Jury will select the 20 contestants that will advance to the next round.