The music includes some of the composer's most spectacular and difficult arias. Osmin's act 3 aria "O, wie will ich triumphieren" includes characteristic 18th century coloratura passage work, and twice goes down to a low D (D2), one of the lowest notes demanded of any voice in opera. Perhaps the most famous aria in the opera is the long and elaborate "Martern aller Arten" ("Tortures of all kinds") for Konstanze, an outstanding challenge for sopranos. Konstanze sings in a kind of sinfonia concertante with four solo players from the orchestra; the strikingly long orchestral introduction, without stage action, also poses problems for stage directors.