Hamiltonians of a certain late-millennial vintage could be forgiven for not recognizing James Bryan McCollum biking past them on the rail trail. But they’d surely recognize his alter ego.

Hamiltonians of a certain late-millennial vintage could be forgiven for not recognizing James Bryan McCollum biking past them on the rail trail. But they’d surely recognize his alter ego.

That’s where, as a 15-year-old guitar phenom, he sat alongside bassist James Jamerson as Motown's Funk Brothers house band cut a track in 1969. Parker, visiting the Motown Museum on Wednesday ...