[1] The recordings originated with tapes that Dolphy left with composer Hale Smith and his wife Juanita before leaving for Europe in 1964 to tour with Charles Mingus.

The two "Inner Flight" tracks are solo flute pieces (David Toop called them "experiments in amalgamating jazz phrasing, expressive tone and free-flowing lines with the tightly 'graphic' abstraction of Varèse's Density 21.5"[5]), while "Improvisations and Tukras" reflects Dolphy's interest in the music of India, and features tamboura and tabla.

Another version of the piece, with the correct title and attribution, was released as a bonus track on the 2018 album Musical Prophet: The Expanded 1963 New York Studio Sessions.

[9] In a review for AllMusic, Al Campbell called the album "fascinating, and in its own way essential" and described "Jim Crow" as "startling," noting that it "shows [Dolphy's] embracing of 20th century classical composition.

West, writing for Jazz Times, praised the flute-oriented tracks, stating that, on "Inner Flight," Dolphy "plays in a clear, flowing style, making wide ballet-like leaps but then lilting back to earth like a leaf in the wind," while "Improvisations and Tukras" is portrayed as "an absolutely mesmerizing moment whose beautiful implications deserved further investigating.