After a series of tests, Michael Tilson Thomas was diagnosed with a brain tumor that required an immediate operation. The operation at the UCSF Medical Center was successful. He embarked on a course of therapy for the next several months which necessitated curtailing his public appearances through the end of October. MTT was being cared for by the excellent team at UCSF who are continuing to explore all possible options for treatment.

“I deeply regret missing projects that I was greatly anticipating,” said Tilson Thomas. “I look forward to seeing everyone again in November.”

Previously scheduled engagements from which Tilson Thomas withdrew were performances with the National Symphony Orchestra for the Kennedy Center’s 50th Anniversary, the Indianapolis Symphony Orchestra, the New World Symphony, and the Chicago Symphony Orchestra.