Gabriel Díaz was born in Seville (Spain). He began his music studies on the piano, continuing later with singing and historical performance. His vocal training began at the Coro Barroco de Andalucía (Andalusian Baroque Choir), where he received lessons from Carlos Mena, Lambert Climent and Lluis Vilamajó. In 2005 he studied at Trinity College of Music in London with countertenor Timothy Travers-Brown, Philip Thorby and Stephen Preston.
He performs regularly with many orchestras and ensembles such as La Capella Reial de Catalunya, Choeur de Chambre de Namur, La Grande Chapelle, Los Músicos de su Alteza, Vox Luminis, Les Ambassadeurs and Musica Saeculorum, under conductors such as Jordi Savall, Leonardo García Alarcón, Lionel Meunier, Marco Vitale, Philipp von Steinaecker or Alexis Kossenko, among others.
Gabriel Díaz has performed in a large number of festivals in Spain, Portugal, France, England, Belgium, The Netherlands, Germany, Italy, Austria, Switzerland, Estonia, Poland, Norway, Morocco, Mexico, Colombia, Peru and the United States, as well as in major venues such as the Opéra Nationale de Montpellier, Opéra de Reims, Centre for Fine Arts (Brussels), Gran Teatre del Liceu (Barcelona), deSingel (Antwerp), De Doelen (Rotterdam), Konzerthaus (Viena), Warsaw Chamber Opera, National Theatre (London), Teatro Mayor (Bogotá) or Nezahualcóyotl in Mexico City.
He has been invited to give masterclasses at the University of Málaga, Centro de Iniciativas Culturales (University of Sevilla), Muestra de Música Antigua Castillo de Aracena, Coro de la Sociedad Musical de Sevilla, Centro Nacional de las Artes (CENART) and Sistema Nacional de Fomento Musical in Mexico.
He has taken part in many recordings for Almaviva, Alia Vox, Enchiriadis, Arsis, NB Musica, Ricercar, Lauda Musica and Alpha, some of them winners of awards such as the Preis der Deutschen Schallplattenkritik, Critics' Choice Gramophone, 5 Diapason, Diapason D'or and FestClásica.
In 2015 Gabriel Díaz was selected among dozens of candidates to take part in the Haendel Residency of the Festival d'Aix-en-Provence, tutored by Emmanuelle Haïm. That same year, he was chosen by online magazine Bachtrack as one of the most promising performers during the month dedicated to countertenors.
He has sung the role of Andronico in Haendel's Tamerlano with the French orchestra Les Ambassadeurs and conductor Alexis Kossenko at the Poznan Opera House, to great success. He covered the title role in Haendel's Orlando at the Welsh National Opera with Rinaldo Alessandrini and made his debut at the Warsaw Chamber Opera, singing the role of Ircano in Semiramide riconosciuta by Leonardo Vinci under Marco Vitale. He has sung Galatea in Haendel's Aci, Galatea e Polifemo with Andreas Spering in Seville, and Medoro in La Lisarda by Giovanni Battista Mariani with Rogerio Gonçalves in the Donaufestwochen (Austria).
Curious about other repertoires and artistic manifestations, Gabriel Díaz has explored other ways of expression such as the jazz-flamenco-classical fusion of the Looking Back Orchestra and its show Zambra Barroca by prestigious jazzist, recorder player and improviser Andreas Prittwitz, which he premiered at the Auditorio Nacional de Música (Madrid). He also performed in the dance show Until the Lions with the Akram Khan Company, founded and directed by Akram Khan, one of the most celebrated contemporary dance coreographers.
Gabriel Díaz has sung Haendel's Messiah at the Palau de la Música Catalana in Barcelona with Le Concert des Nations led by Jordi Savall. Future engagements include Monteverdi’s Orfeo with Jordi Savall at the Opéra Comique in París and the Opéra Royal de Versailles, and Cavalieri’s Rappresentazione di anima e di corpo with Vox Luminis in Bruges and Utrecht.