Kennedy Center Honors recipient Herbie Hancock, still seeking the next sounds

His circadian rhythms are still set to jazz hours, so with the regimen of nightly gigging long behind him, Herbie Hancock likes to stay up all night behind a smaller keyboard, buying stuff online. On a recent Friday afternoon, the bounty of his latest 3 a.m. shopping spree plunks down on his West Hollywood doorstep -- a box containing a wireless digital-to-analog converter and a copy of "Pacific Rim" on Blu-ray.