For the past twenty years,[as of?] Haguenauer has formed a duo with tenor Gilles Ragon,[7] with whom he has deepened the repertoire of French mélodies and lieder.
In 2012, he finished the first complete recording of Claude Debussy's melodies, made in Brive-la-Gaillarde, on the composer's piano kept at the Brive Museum.[8]
Ernest Bloch's works for viola, with Pierre-Henry Xuereb, Andras Adorjan; éditions Adda, 1989
Carl Maria von Weber's Chamber music: Piano quartet, Flute trio, Variations for violin and piano; Alexis Galperine, Pierre-Henry Xuereb, Cecilia Tsan, Jean-Christophe Falala; éditions Timpani, 1991
Transcriptions of Beethoven's symphonies n°1 et 2 by Franz Liszt, éditions Harmonia Mundi, 1995;
Francis Bayer's Cinq Essais, with Renaud François, flute; Alain Meunier, cello; Épisode, Tétra Ensemble, with Madalena Soveral,[9] piano; Christian Hamouy and Georges Van Gucht, percussions, éditions Pierre Vérany, 1996;
Claude Debussy's Préludes, éditions Ligia Digital, 1998
Claude Debussy's Piano music, éditions Meridian Records, 1999
Guy Ropartz's Trio in A minor for violin, cello and piano, with Alexis Gasparine, violin; Cecilia Tsan, cello, éditions Timpani, 1999
Guy Ropartz's 1st and 2nd sonatas for violin and piano, with Alexis Galpérine, éditions La Guilde des musiciens, 2003
Igor Stravinsky's Histoire du soldat and other pieces, with Michel Lethiec, Patrick Gallois, Annick Roussin, Alexis Galperine, Pierre-Henry Xuereb, Philippe Muller, Francis Pierre; éditions Saphir Productions, 2010
Hector Berlioz's Mélodies and duos, with Gilles Ragon, Didier Henry, éditions Maguelone, 2013
Johann Strauss' Four Waltz, Transcription by Schoenberg, Berg and Webern, Stanislas ensemble, éditions Gallo