The Pennsylvania Opera Theater presented the United States premiere of the work at the Trocadero Theatre, Philadelphia, in March 1982 with John Gilmore in the title role.

[3] In 2023, Il Giardino Armonico conducted by Giovanni Antonini gave concert performances at the Gran Teatre del Liceu and the Teatro Real, with cast including Emőke Baráth, Nuria Rial, Alasdair Kent and Josh Lovell.

The shepherdess Eurilla and her father Licone are alarmed by the appearance of a threatening knight, searching for Angelica and Medoro.

The knight reveals himself as Rodomonte, King of Barbary, infatuated with Angelica and intent on protecting her from Orlando's jealousy.

Medoro now enters with the unwelcome news that Orlando and his squire Pasquale have been sighted nearby but is unsure whether to stay or escape.

The braggart Rodomonte is still in pursuit of Orlando and narrowly misses him when he arrives to interrogate Eurilla, on the whereabouts of Medoro.

Rodomonte is once more about to attack him, but when Eurilla brings news that Medoro and Angelica have fled, Orlando dashes off in pursuit.

As Angelica is about the throw herself into the sea in despair, Alcina's magic transports her to Medoro's presence and they re-affirm their love.

Orlando and Pasquale arrive in search of Alcina, and the paladin furiously insults the sorceress for protecting Medoro.

Scene 1 – The Underworld, by the river Lethe, the Elysian Fields beyond Charon, the infernal ferryman, watches over the sleeping Orlando.

Scene 2 – A room in the castle While discussing their marriage, Eurilla and Pasquale are interrupted by Orlando, seeking his squire's aid.

Angelica and Medoro can now love one another without fear, Pasquale and Eurilla are united, and Orlando may go in search of fresh deeds of valour.