In 1992, he entered the Conservatoire de Toulouse [fr]. In 2005, he began a career as a baritone. Today, he performs in works from the 19th century French and Italian repertoire (Verdi, Puccini, Bizet, Massenet) without neglecting contemporary creation (La Métamorphose by Michaël Levinas).
Heyboer began his musical apprenticeship at the age of eleven when he began practicing singing in the choirs of Terrasson-Lavilledieu and the Camerata Vocal of Brive.
He sang Renaissance, French, Italian and German Baroque repertoires in the festivals of la Vézère, La Chaise-Dieu and the Sylvanès Abbey [fr]. He studied classical guitar for eight years.
He moved from choral singing to the roles of soloist, and developed his technique through private teaching. He met artists such as José van Dam. He followed the master classes of the "Master of Music" and took part in several concerts alongside him. At the Capitole de Toulouse he was a soloist in Charpentier's Louise (direction by Nicolas Joel, conductor Michel Plasson).
In 2009 he sang on the land of his Dutch ancestors at the Amsterdam Opera House, performing La Juive. He sang Melot in Tristan und Isolde at the same time as he took on the role of Kurwenal at the Forum de Montpellier.
He took part in the premiere of Michaël Levinas's La Métamorphose at the Opéra de Lille, a production which won the "Grand Prix of the Academie Charles Cros" in 2012 and the "Prix de l'Académie lyrique du disque".
In 2013, he was Padre Camoine in Mascagni's Amica at the Opéra de Monte-Carlo. In April of the same year, he sang, accompanied by Éloïse Urbain,[4] an opera recital as part of the "Great Performers" season of the Sinfonia festival in Périgord.
In the 2017–2018 season, he sang the cycle of the Winterreise accompanied by Éloïse Urbain in the season of the great interpreters of Sinfonia in Périgueux.
Valentin: Gounod's Faust, Festival d'Avignon with Nathalie Manfrino, Florian Laconi and Nicolas Cavallier, conductor Dominique Trottein, and Opéra de Reims with Guylaine Girard, Sébastien Guèze and Nicolas Cavallier
Olkar: Charles-Simon Catel's Les bayadères, (in concert in Sofia, Bulgaria) with Chantal Santon, Philippe Do, Mathias Vidal, Katia Velletaz, Kareen Durand, Elodie Méchain, Eric Martin-Bonnet, Frédéric Caton, conductor: Didier Talpain
Lescaut: Massenet's Manon with Nathalie Manfrino and Florian Laconi, Marcel Vanaud, Opéra de Hong Kong, conductor Nicola Colabianchi
2009
Roucher: Giordano's Andrea Chénier with Marcello Alvarez, Micaela Carosi and Sergei Murzaev, Opéra Bastille, conductor Daniel Oren
Ruggiero: Halévy's La Juive with Dennis O'Neil, Annick Massis, Angeles Blancas Gulin, John Osborn and Alistair Miles, Opéra d'Amsterdam, conductor Pierre Audi
