Guillermo Pérez (Barcelona, 1980) is a conductor, researcher, specialist of early keyboards and virtuoso player of the organetto, the iconic and expressive portative organ from the 14th and 15th century. Pérez graduated from the Barcelona and Seville Conservatories and later studied in Milan, Rome and Toulouse. In the last 20 years he has become one of the rare specialists of the organetto, developing a unique technique with a refined and poetic personal style. He is the founder and artistic director of the renowned ensemble Tasto Solo, which performs regularly in the most prestigious European festivals and concert venues. He has collaborated with Mala Punica, J. Savall & Hespèrion XXI, Micrologus, The Unicorn Ensemble, Diabolus in Musica, and ClubMediéval and has recorded over 20 CDs for Aeon, Alia-Vox, Musica Ficta, Naïve, Passacaille, Pneuma, Raum-Klang, Ricercar and Zig-Zag Territoires labels.

Guillermo Pérez teaches organetto and medieval music at the Koninklijk Conservatorium Brussels (KCB) and renaissance music at the Pôle des Arts Baroques (PAB) of Toulouse Conservatory. He has developed educational programs at the Centre Itinérant de Recherche sur les Musiques Anciennes (CIRMA) in Moissac, France, the Gerona Conservatory of Music in Spain, and at the Centro Studi Europeo di Musica Medievale “Adolfo Broegg” Spello, Italy. He has given lectures at masterclasses in the conservatories of Vienna, Moscow and Orsay, at the Schola Cantorum Basiliensis, the Academia de Órgano Julián de la Orden, The Grieg Academy University of Bergen and the Essen Folkwang Universität der Künste. 

As an avid solo performer, Guillermo Pérez has developed programs based not only on his research of the organetto and its historical context, but also it’s place in the modern musical landscape: collaborating with the renowned Spanish composer José-María Sánchez-Verdú to premiere his works Totentanz-Buch (2015, Semana de Música Religiosa de Cuenca), Tous les Regretz (2016, Museo del Prado - Exposición El Bosco), and Chanson bleue (2019, Fundación Juan March). Together with Italian organ maker Walter Chinaglia, he (re)constructs medieval and early Renaissance organetti and organ models. In 2012 they brought to life the surprising organ designed by Leonardo da Vinci in 1503 and preserved in one of his personal notebooks, the Codex Madrid II (fol. 76r) from the Biblioteca Nacional de España.