Chapter XII, carbon copy, n.d.

Includes professional correspondence with William W. Austin, Andrea della Corte, Archibald Davison, D. Keith Falkner, Scott Goldthwaite, Otto Kinkeldey, Jan LaRue, Zofia Lissa, Rey Longyear, Rosamond McGuinness, Arthur Mendel, A. Tillman Merritt, Robert U. Nelson, Nino Pirrotta, Eduard Reeser, Walter Rubsamen, Leo Schrade, Denis Stevens, Oliver Strunk, Peter Gram Swing, Robert Tangeman, Frederic Tillotson, Henry Woodward, G. Wallace Woodworth, and Columbia University Press; and applications and recommendations for grants and university positions. Also, personal correspondence with his parents while studying in Europe and teaching at Mills College (1933-1936) and with a friend and former student, Jonathan Schiller (1943-1982); worksheets, photographs and galley proofs for History of Western Music and both editions of A Short History of the Opera; notes and notebooks on "Early Opèra Comique" (ca.1936-1941), "Molière's Comèdie-Ballets" (ca.1937-1942), "Gherardi's Music" (1939), and "Parodies in Opèra Comique" (1939); his dissertation manuscript (1939); a manuscript on West Indian Music (1942); lecture notes; musical tapes; annotated programs; and a typescript of an article "How to Tell Good Music from Bad" (1955) with comment by William W. Austin; alphabetical correspondence file, correspondence with W. W. Norton; and correspondence relating to A Short History of the Opera and to The Operas of Alessandro Scarlatti.

"Grout Films Index" (3 ring binders) listing microfilms in the Music Library collected by Grout; "Grout Films Index Supplement" (folder); "Scarlatti Catalog," compiled by Michael Keller under the guidance of Donald J. Grout, cataloging the Scarlatti materials collected by Grout and held in the Music Library; and Grout address book containing information about libraries throughout Europe and a brief listing of some of the microfilms.