. . . "Motets of the Opus sacrarum cantionum" . . "The four-voice motets of Thomas Crecquillon/ 2, The motets of the Opus Sacrarum Cantionum" . . "The four-voice motets of Thomas Crecquillon 2. The motets of the opus sacrarum cantionum" . "The four-voice motets of Thomas Crecquillon. Part 2, The motets of the Opus sacrarum cantionum" . . . . . . . . . .