Hasse (Cleofide); Gluck (Orfeo ed Euridice); Traetta (Antigona); Massenet (Manon ; L´ensoleillad in Chérubin) Offenbach (four roles in Les Contes d´Hoffmann); Vives (Doña Francisquita); Debussy (Pelléas et Mélisande); Bizet (Micaela in Carmen; Les Pecheurs de Perles) and, especially Mozart (Susanna and Cherubino  in Le Nozze di Figaro; Ilia in Idomeneo; Zerlina and Donna Anna, in Don Giovanni; Despina and Fiordiligi in Così fan Tutte) with great conductors: Sinopoli, Chailly, Sir Colin Davis, Gavazzeni, Maazel, Pappano, C. Rizzi, M.Viotti, Scimone, Bychkov, Plasson, Armin Jordan, Ros Marbá, López Cobos, Frühbeck, M. Gómez Martinez, G. Navarro, Victor Pablo, R. Jacobs, Hogwood, Alessandrini, Ivor Bolton, Rousset, De Marchi, etc.

Maria Bayo sang Four Last Songs by Richard Strauss; Mahler´s Second Symphony; Beethoven´s Ninth Symphony; Stabat Mater, Petite Messe Solennelle and Messa by Rossini; Ein Deutsches Requiem, by Brahms; Mozart´s Requiem and Coronation Mass; Bach Cantatas; Orff´s Carmina Burana and Catulli Carmina; Canteloube´s Chants D´Auvergne, etc, in the major concert halls of Paris, Brussels, Amsterdam, London, New York, Tokio, Barcelona, Berlin, Köln or Dresden.