One composer who made great use of ostinato figures in his operas is Giuseppe Verdi. Verdi often employed ostinato patterns to create rhythmic and harmonic tension in his works. Some notable examples include the famous "Brindisi" chorus in La Traviata, which features a repeating rhythmic figure in the orchestra, and the "Anvil Chorus" in Il Trovatore, which utilizes a driving ostinato pattern to depict the smiths' work in the background.
