She had less than four hours' notice that she would sing that night, and the curtain was even briefly held past 20:00 to allow her to walk the stage.

[4] She interpolated a high A-flat (A♭6) into Olympia's aria, which, at the time, was conjectured to be the highest note to have ever been sung on the stage of the Met.

In 2013 Gilmore made her debut at the Opéra de Lille in the title role of Lucia di Lammermoor.

In 2015 Gilmore portrayed Blonde in the Aix-en-Provence Festival's production of Die Entführung aus dem Serail; a role she repeated that year at the Théâtre des Champs-Elysées.

That same year she sang the role of Sophie in Werther at the Boston Lyric Opera, and returned to the Glimmerglass Festival as Ninetta in La gazza ladra in addition to performing as the soprano soloist in Joseph Haydn's The Creation with the Los Angeles Philharmonic.