The New York Times speaks to experimental music composer Fred Ho about his “Sweet Science Suite,” which follows the life and work of boxer Muhammad Ali. Mr. Ho, 56, has advanced colorectal cancer. “I’m hoping to be well enough to do the solos in the second movement,” he says. “But I don’t know. Right now I’m so weak and tired that I can only practice 10 minutes a day. But I’m still keeping up my chops.”