Jazz saxophone great Michael Brecker waits to find a donor for a bone marrow transplant to fight his cancer. “Brecker’s illness forced him to cancel a much-anticipated appearance at this month’s Newport Jazz Festival, where he would have showcased the stylistic versatility that won him 11 Grammys, including two last year for his large ensemble album “Wide Angles.” Brecker had been scheduled to perform with Saxophone Summit — whose adventurous and spiritual music reflects the influence of tenor saxophone legend John Coltrane — and Steps Ahead 2005, the latest edition of the all-star jazz-rock fusion band formed by Brecker and vibraphonist Mike Mainieri in the late ’70s.”