Music historians once considered cori spezzati (the use of more than one choir in the performance of sacred music in cathedrals) a Venetian tradition invented by Adrian Willaert. Scholars then showed that this technique was first used by native Italian composers of the Veneto (Venice) and Lombardy regions. Resent research has shown that cori spezzati also flourished in central Italy and should be placed in a wider geographical context. This article goes on from there.