Their first recording, A Feather on the Breath of God, coincided with the release of Ensemble Sequentia's Ordo virtutem, and helped launch the international resurgence in interest in Hildegard's music. Since that time, the bulk of their work has been in the music of France and England, from the thirteenth to the fifteenth centuries. One series entitled the Spirits of England and France contains, for instance, recordings of two anonymous early English Masses, as well as a luscious recording of Binchois chansons and one of the best performances of Trouvère lyrics in print. Fascinatingly, a 1998 La Rue disc betrays some vocal uncertainty, as the group approaches music outside the repertories in which it has lived so securely. Christopher Page himself considers two recordings from the early 1990s (The Medieval Romantics and Lancaster and Valois) to represent a watershed in the life of the ensemble, when they acquired the services of two baritones whose voices so elegantly fit the group's sound. More prominently, it was also at this time that his "experiments" with vocalization of untexted chanson lines came to fruition.
Though Christopher Page himself is a philologist by training, lecturing in Anglo-Saxon, Middle English, Old French, and Latin at Cambridge University, his printed scholarship on medieval music has been highly influential (even inflammatory). His writings on music sensitively and deeply consider the role of music in medieval European life, as well as specific issues of performance practice. One of these has been dubbed by a furious critic the "English a cappella heresy": the argument that British singers steeped from an early age in Cathedral choir singing have evolved a natural proclivity towards compelling performances of vocal Early Music. Gothic Voices (with the Hilliard Ensemble, etc.), English groups which sing their music principally without instruments, and often one to a voice part, demonstrably bring a nearly inhuman clarity to vocal polyphony.
One unique contribution of Gothic Voices to this performing tradition is the "experiment" of complete chanson vocalization. Whereas an earlier generation of performers freely orchestrated the untexted lines of medieval secular song, Page (coincidentally a fine harpist) believed that evidence in medieval literature supported the notion of "instrumental" singers on untexted lines. He developed a system of all-vowel vocalises, and proceeded to enact his theory in sound through the ensemble. While this theory has not even approached universal acceptance, his characteristic blend of careful scholarship and unquestionable results in performance uses all his professional and artistic acumen to bring the music of the past alive to our ears.