The festival's organisers, Società ATA, received 216 song submissions for the competition. In December 1965, an advisory commission lead by composer
Carlo Savina and composed of journalists Velia Veniero, Angelo Cavallo, Sandro Delli Ponti, Filippo D'Errico, and Rodolfo D'Intino as well as composer
Pino Calvi, narrowed down the list of submissions to thirty-five. ATA then chose twenty-six entries from the list to compete in the event, increased from the original aim of twenty-four. In a change from the previous two editions, competing songs were allowed to be performed by two Italian artists or two foreign artists, instead of strictly once by Italian artists and once by foreign artists. Among the competing artists were
Luciana Turina and , who were given the right to participate after winning the 1965 edition of the
Castrocaro Music Festival for newcomer artists. After the song "" written by
Mogol and
Bobby Solo was accepted into the competition, the festival's broadcaster, (RAI), made a request to ATA to prevent Solo from performing the song. Due to his repeated acts of indiscipline, they had announced a six-month suspension period on his television appearances. ATA accepted the request, forcing his record label
Dischi Ricordi to announce his replacement with the vocal group I Musicals, who would perform his song at the festival. However, after Solo apologized to RAI through a written letter, they went back on their decision and allowed the label to reinstate his participation. ==Contest overview ==