My partner in minimalist conference-running David McIntire actually went to San Francisco and visited the elusive Dennis Johnson this week, composer of the five-hour piano piece November and gaining quite a belated reputation recently as a minimalist pioneer. Dennis is self-admittedly dealing with the early stages of Alzheimer’s, but he staves it off via physical exercise and took our musicologist friend on quite a hike. Turns out Dennis was born November 22, 1938, so we have that now for the reference works; and David saw some music, without enough context to make sense of it yet. On a clear day Dennis can see the Golden Gate Bridge from his apartment, and David sent me a few photos of him. I can’t think now why I had pictured him as tall and heavy-set: