Side 1 of the original LP features the second great quintet of Davis, Shorter, Hancock, Williams and Carter playing the three Nefertiti outtakes.

On Side 2 of the LP, Ron Carter is replaced by Dave Holland and Chick Corea doubles with Hancock on electric piano for two extended pieces from 1968.

Shorter told an interviewer that story created within him "this wonder about the netherworld, about the places that we can't see, but that we can enter anytime.

[12] In The Village Voice, Robert Christgau said the compiled recordings were not "quite vintage Miles", being particularly critical of "Dual Mr. Tillman Anthony" while finding "the rest is better".

[13] "Although not an essential set", Scott Yanow wrote in AllMusic, "this album fills in some gaps during Davis's transitional period from adventurous acoustic playing to early electric performances.