He has recorded over 50 CDs of early music, ranging from Hildegard of Bingen with Sequentia, to Renaissance consorts with the Boston Camerata, to Rameau operas with Les Arts Florissants.
He has toured with the Mark Morris Dance Group and accompanied Renée Fleming on the David Letterman Show.
A devoted chamber musician, he is a member of the Renaissance violin band The King's Noyse, and the seventeenth-century ensemble Quicksilver.
In 2004 he received Early Music America’s Binkley Award for outstanding teaching and scholarship, recognizing his work at Yale and Harvard.
He also teaches historical improvisation and technique at summer workshops across North America, including the Madison Early Music Festival.