This brief supplement to my previous article (Tempo, No. 42) is intended to amplify the references to graduate courses available at Columbia University, in case anybody should take my last paragraph seriously. I mentioned there the possibility of combining teaching and study in an American university as being a practical way to gaining a research degree, under the guidance of some of the world's leading musical scholars. My reason for choosing Columbia University is simply that I know it best through having taught there. To assist my memory I have made use of the 1956–1957 Announcement of the Faculty of Philosophy, a book of 168 pages.