Primarina strikes a series of synchronized poses with its Trainer to build Z-Power. It then sings a song and generates a gigantic bubble from it nose. Primarina then moves the bubble over the opponent and sings another song, causing the bubble to burst.
During the animation of Oceanic Operetta, Primarina's body is reversed symmetrically, with its tail on the right side of its body instead of its left. This change is not apparent for any other Pokémon or Z-Move.
Despite its name, and the fact that it is an upgraded version of Sparkling Aria, Oceanic Operetta is not a sound-based move.