Recognition of Dunstable as one of England's eminent composers in the fifteenth century is demonstrated by the references to him both during his life and after.
He maintained interests in music, astrology, and mathematics but did not pursue all of these avenues throughout his life. (Astrology was his primary interest; he seems to have become less interested in music during his waning years.) There are approximately 51 works attributed to Dunstable including mass parts, magnificats, motets, secular works and other sacred works. His music was most often written for three voices (occasionally four) and the tenor carried the lowest part for three-voiced compositions. Dunstable wrote using isorhythms, plainsongs without isorhythms, lucid textual presentations, liberated melodic lines from two other parts which were often slower in movement, triple timing, pairings of the mass movements through the tenor line, and predominantly major sounding harmonies. ~ Keith Johnson, Rovi