Lucía Díaz Marroquín started her singing studies at the Madrid Escuela Superior de Canto, complemented them with the tenor Francisco Ortiz, and completed them at the State University of New York with the mezzo soprano Elaine Bonazzi. She specializes in the baroque and bel canto repertoires, having taken part in masterclasses with performers such as Emma Kirkby (Dartington School of Arts), Cristina Miatello and Marta Almajano (Daroca Early-Music Week), Max van Egmond (La Caixa/Barcelona Masterclasses) and members of the ensemble Les Arts Florissants (Internationale Singwoche Luzern). She was a soloist member with the State University of New York Baroque Ensemble as well as in recitals and oratorio productions in New York. She has performed with early-music ensembles such as A sei voci, Gächinger Kantorei and Qvorum.
She has performed soloist roles in operas and oratorios with conductors such as Arthur Haas and Michael Fields , while taking part in concerts conducted by other early-music specialists such as Helmut Rilling, Bernard Fabré-Garrus, Emilio Moreno, etc., in festivals such as Toulouse les Orgues (Francia), the Classical Theatre Festival at Almagro (Spain) and the New York Early-Music Festival (EEUU). Her repertoire includes mezzo soprano and alto roles in the main baroque, classical and romantic oratorios, as well as trouser roles in Handel, Mozart and Rossini operas (Bradamante in Alcina, Cherubino in Le nozze di Figaro, and the title role in Tancredi). It also encompasses bel canto and romantic heroines and the French, Spanish and English concert song, as well as the German Lied.
As an academic, she has published three books on the relationship between literature, rhetoric, gesture and opera: La retórica de los afectos (Kassel: Reichenberger, 2008) and La práctica del canto según Manuel García (with Mario Villoria. Madrid: CSIC, 2012), as well as a recent annotated edition of Manuel Patricio García’s Traité complet de l’art du chant (with M.V. Kassel: Reichenberger, 2012). She has developed post-doctoral research and presented her results at centres such as the Universidad Complutense de Madrid, the Università di Bologna, the Warburg Institute and the University of Oxford.