http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
being a choice collection of the most diverting catches for three and four voices
With an introduction to the Da Capo ed. by Joel Newman.
From the Howard Mayer Brown, Edward Downes and Mary Schieffelin book collections, October 2004.