[5] In August 1969, he took part in Poland's Sopot International Song Festival with his first major composition La valse de l'enfance (The Waltz of Youth).
When Saint-Preux returned to France, René Boyer, head of the music publishers Fantasia, took him under his wing and arranged to have Concerto pour une Voix recorded.
Since that time Concerto pour une voix has been recorded by many other musicians, including Maxim Saury, Caravelli, Aimable Pluchard, and Raymond Lefèvre.
[9] An excerpt from the original Licari version appears in Wyclef Jean's 1997 album The Carnival,[12] and the song was also performed in André Rieu's 2007/2008 In Wonderland tour.
Saint-Preux composed Les Cris de la liberté, an hour long hymn to peace and human rights, to aid humanitarian projects.