The Gaspar van Weerbeke Edition makes accessible the complete music composed by or transmitted under the name of Gaspar van Weerbeke, and who worked for the chapel in Milan and other major institutions at the end of the fifteenth century. Weerbeke’s name is especially connected with a peculiar Milanese motet style whose origin has been discussed for decades and has been challenged recently by new insights connected with research on his colleague Josquin Des Prez. This edition offers new material for comparisons with the music of others contemporary composers that will help answer questions of personal and local style and about the history of specific genres. Helping to broaden our understanding of the development and the richness of these kinds of compositions, the edition offers a new overview on the print and manuscript transmission of Weerbeke’s motets and provides the basis for further analytical studies and a new hypothesis about his music. Performers now have access to new music that is especially representative of the variety of motet styles available at the end of the fifteenth century. For more information, see http: //www.corpusmusicae.com/cmm/cmm\_cc106.htm