Carnegie Talks: Michael Tilson Thomas Perspectives: Michael Tilson Thomas Michael Tilson Thomas discussed the art of conducting with Ara Guzelimian. The program was illustrated with musical excerpts and concluded with a complete chamber performance of Copland's Appalachian Spring, led by Mr. Tilson Thomas. The musicians performing excerpts from Copland's "Appalachian Spring" were participants in The Michael Tilson Thomas Workshop: Music of Aaron Copland. lecture 2003-11-20T19:30:00