Bel canto vocal music also frequently uses ossia, also called oppure, passages to illustrate a more embellished version of the vocal line (Fallows 774).
Adelaide di Borgogna, ossia Ottone, re d'Italia (Adelaide of Burgundy, or Otto, King of Italy) is a two-act opera composed by Gioachino Rossini (with contributions by Michele Carafa) to a libretto by Giovanni Schmidt.
La forza delle donne (music by Pasquale Anfossi, also under the title Il trionfo delle donne, 1778; music by Bernardo Ottani under the title Le amazzoni, 1784; music by Peter von Winter under the title Ogus ossia Il trionfo del bel sesso; music by Giuseppe Nicolini under the title Ogus ossia Il trionfo del bel sesso, 1799)
Matilde di Shabran (full title: Matilde di Shabran, ossia Bellezza e cuor di ferro; English: Matilde of Shabran, or Beauty and Heart of Iron), is a melodramma giocoso in two acts by Gioachino Rossini to a libretto by Jacopo Ferretti after François-Benoît Hoffman’s libretto for Méhul’s Euphrosine (1790, Paris) and J. M. Boutet de Monvel's play Mathilde.
Alan Pierson conducts Alarm Will Sound and the Ossia Ensemble from the Eastman School of Music, which perform Reich's 1978 Music for a Large Ensemble.
Una cosa rara, ossia Bellezza ed onestà (A Rare Thing, or Beauty and Honesty) is an opera by the composer Vicente Martín y Soler.