66 years ago, John Coltrane's "Coltrane's Sound" was recorded. An Atlantic quartet date with Tyner, Davis and Jones. Tighter forms than the later albums, and Coltrane already pushing past straight hard bop.

Nathan Watts's bass on "Sir Duke", note by note. Stevie wrote it as a tribute to Duke Ellington and the swing-era greats. The famous unison run has Watts doubling the horn section note for note, one of the hardest bass parts in pop.