From a NYTimes article
"The memorial program for the saxophonist Michael Brecker that filled Town Hall on Tuesday night kept landing on the theme of generosity. Mr. Brecker died of leukemia on Jan. 13 at 57. During his illness he enlisted family members and friends in sending out a call for bone-marrow donors — not just for himself — that resulted in tens of thousands of donor registrations. His friends in jazz and pop music all implied that this wasn’t just an isolated case of conscientiousness."
Some interesting things mentioned are that Michael did drugs in the 70s (probably with 90% of the population as well), as well as some of the stories such as:
"Randy Brecker told a similar story, about one of the hundreds of recording sessions at which he had been hired to work alongside his brother. Michael, he said, came to work straight from the airport after a long flight, not having had time to read the music. He was asked by the producer to build a solo through a long two-chord vamp. One could see where this was going: Michael’s solo was of disturbingly high quality, and Randy was asked to take it from there."
For more Brecker stuff, check out Michael Brecker.com and a new fan site (which was supposed to be a Michael Brecker interactively supported site), iBrecker. iBrecker also has some more info about the Memorial Service.