<p>Here’s an informal survey, based on Harvard’s list of current graduate students in one field in the humanities: music history:
4 Oxbridge (UK)
2 Stanford
1 Princeton
1 Penn
1 Wesleyan
1 Oberlin
1 Colorado College
1 Wm and Mary/U Maryland
1 U Michigan
1 U Wisconsin
1 U Washington
1 Queens College, NY
1 Indiana
1 Holy Cross
0 Harvard
0 Yale
0 UC Berkeley
1 Bologna/Smith</p>
<p>In Ethnomusicology, the results are similar – 0 Harvard and as many from Oberlin and Amherst (and Bowling Green and Agnes Smith) as from Yale, Columbia, or UC Berkeley – i.e., one from each.</p>