He has appeared with the Philadelphia Orchestra, Het Concertgebouw, BBC Symphony, BR Orchester und Chor, NDR Orchester, Czech National Symphony, Baltimore Symphony, Sinfonica della RAI, Beethoven Easter Festival, Warsaw, Festival de Musica Sacra de Cuenca, Sinfónica de Bilbao, Orquesta de Galicia, Orquesta de la Principado de Asturias, Sinfónica de Oviedo, Schleswig-Holstein Festival, Stavanger Symphony, Darmstadt Staatorchester, Aspen Music Festival, Minnesota Orchestra, American Symphony Orchestra, as well as frequent concerts and recitals throughout the Americas and Europe.
He has collaborated with many prestigious conductors such as, Riccardo Muti, Lorin Maazel, James Levine, Charles Mackarras, Yuri Temirkanov, Jesús López Cobos, Christoph Eschenbach, Kent Nagano, James Conlon, Charles Dutoit, Michel Plasson, Ivor Bolton, Antonio Pappano, Jeffery Tate, Richard Bonynge, Leonard Slatkin, David Zinman, Neeme Jarvi, Donald Runnicles, Daniel Oren, Anton Guadagno, Julius Rudel, Eiji Oue, Juanjo Mena, Marco Armiliato, Josep Pons, John Fiore, Nicola Luisotti, Gary Bertini etc.
He has participated in productions by stage directors such as Franco Zeffirelli, Emilio Sagi, Robert Carson, Yannis Kokkos, Calixto Bieito, Davide Livermore, Andreas Homoki, Pier Luigi Pizzi, Jonathan Miller, John Coplay, John Cox, Elijah Moshinsky, Achim Freier, Lotfi Mansuori, Thaddeus Strassberger, Willy Decker, Otto Schenk, Harry Kupfer, Doucet/Barbe, Leiser/Chaurier, Yuval Sharon, Rosetta Cucchi, Barry Kovsky, Francesca Zambella, Peter Mussbach.
Throughout his extensive career he has performed along side of many of the most important and influential singers in history. He has performed more than eighty leading roles, singing in ten different languages, the repetoire spanning from the Baroque to the Contemporary, from lyric to heroic. Robertson also has an extensive concert and recital repetoire. He has recorded with conductors such as Riccardo Muti, Richard Bonynge, Leonard Slatkin, Ulf Schirmer, Leon Boltstein etc.
Recently Robertson has focused on performing mature character roles as well as concert and recital performances… He has performed the title role of Falstaff, Don Alfonso (Così fan Tutte), Simone (Gianni Schicchi), Sprecher (Die Zauberflöte), Duc de Verona (Roméo et Juliette), Messiah, Mozart Requiem, Beethoven Mass in C Major, Winterreise, Magnificat (Bach), Messiah. His future engagements include the Mayor (Jenufa) as well as various concert and recital appearences.
He offers private technical and interpretive coaching as well as masterclasses in role preparation and general performance. Since 2023 he has been a guest Professor at the prestigious Escuela Superior de Musica Reina Sofía in Madrid and will return for the academic year 2025/26. He has given masterclasses at the Escuela Superior de Canto in Madrid, the Consevratorio Superior de Música “Joaquín Rodríguez” in Valencia, the Conservatorio Superior of País Vasco “Musikene”, the Conservatorio Superior de Castilla y León in Salamanca, Oberlin Conservatory, Peabody Conservatory and was Artist in Residence at the Opera Studio at the University of Alcalá Henares in Madrid. In the summer of 2026 he will be teaching at the Academy Musicalta in Alsace and has been invited to teach at the Weimar Opera Academy.
Robertson is a graduate of Oberlin College where he studied with Professor Richard Miller. He was a member of the Merola Opera Program at San Francisco Opera, the Wolf Trap Opera Program and recieved a Career Grant from the Richard Tucker Foundation. He is a member of the historic Sociedad La Bilbaína, an Académico in the Academia de Artes Escénicas de España and a member of the Sindicato de Artistas Líricos de España. He a Spanish Citizen and resides between Madrid and Bilbao.
