Opera Ballo is the second foal of the lightly raced Dubai Opera (Invincible Spirit) and her second black-type performer, following Dyptique (Night Of Thunder), a dual winner in France and third in the Listed Prix Maurice Zilber. They are her only winners so far. Dubai Opera is a full sister to Lockwood, twice a Group 3 winner, and to the Listed-placed winner Saga.

Second dam Emily Bronte (Machiavellian) won the Gr.3 Prix des Reservoirs and bred six winners, among them the Group winners Earnshaw (Medaglia d'Oro), who took the Gr.3 Prix Thomas Bryon, was second in the Gr.1 Criterium International and is now a sire, and Lockwood (Invincible Spirit).

Third dam Zafadola (Darshaan) won at Listed level, was third in the Gr.1 Irish St Leger and had seven winners. One of them, the Listed winner Zelanda (Night Shift), is the dam of Time Prisoner, winner of the Gr.3 Prix de Ris-Orangis, and Pearl Grey, winner of the Listed Empress Stakes, and the second dam of the half-brothers Artistic Rifles and Balty Boys, who both won the Gr.3 Superior Mile Stakes.

Dubai Opera has the placed three-year-old colt Damn Precious (Sottsass), a two-year-old filly by Baaeed and a yearling colt by Paddington.