Contemporary Composers Web Archive ExternalThe Contemporary Composers Web Archive (CCWA) is a collection developed by the Ivy Plus Libraries Confederation's Music Librarians (a collaborative working group including Brown, Columbia, Cornell, Dartmouth, Duke, Johns Hopkins, Harvard, MIT, Princeton, and Yale Universities, and the Universities of Chicago and Pennsylvania). The CCWA is an extension of an existing Ivy Plus Libraries Confederation Music Librarians collaborative collection development agreement identifying approximately 1,500 globally based contemporary composers of sufficient importance to have their published printed works collected at a comprehensive level by at least one participating institution.