Davis's set that night was ostensibly in support of voter registration in Mississippi and Louisiana, but he also mentioned in a Melody Maker interview that one of the concerts was in memory of John F. Kennedy, who had been assassinated the previous year.

The up-tempo pieces were issued as Four & More, while My Funny Valentine consists of the slow and medium-tempo numbers.

"[6] The hurried nature of the faster pieces that night has been partially attributed to the sheer importance of the event weighing on Davis's young rhythm section, who were playing their biggest date yet.

"[7]The concert marked the final recording of saxophonist George Coleman with Miles Davis.

He would be replaced by Sam Rivers, then Wayne Shorter, cementing Miles' "Second Great Quintet."