Editing Sun Ra (section)

===Philadelphia phase===
During their third period, beginning around 1976, Sun Ra and the Arkestra settled down into a relatively conventional sound, often incorporating swing standards, although their records and concerts were still highly eclectic and energetic, and typically included at least one lengthy, semi-improvised percussion jam. Sun Ra was explicitly asserting a continuity with the ignored jazz tradition: "They tried to fool you, now I got to school you, about jazz, about jazz" he chanted in concerts,<ref>{{Cite book|last=Lock|first=Graham|url=https://archive.org/details/blutopiavisionso0000lock|url-access=registration|quote=They tried to fool you, now I got to school you.|title=Blutopia: Visions of the Future and Revisions of the Past in the Work of Sun Ra, Duke Ellington, and Anthony Braxton|date=1999|publisher=Duke University Press|isbn=978-0-8223-2440-9|pages=[https://archive.org/details/blutopiavisionso0000lock/page/25 25]|language=en}}</ref> framing the inclusion of pieces by [[Fletcher Henderson]] and [[Jelly Roll Morton]].{{citation needed|date=December 2014}}

In the 1970s Sun Ra took a liking to the films of [[Walt Disney]]. He incorporated smatterings of Disney musical numbers into many of his performances from then on. In the late 1980s the Arkestra performed a concert at [[Walt Disney World]]. The Arkestra's version of "[[Pink Elephants on Parade]]" is available on ''Stay Awake'', a tribute album of Disney tunes played by various artists and produced by [[Hal Willner]]. A number of Sun Ra's 1970s concerts are available on CD, but none have received a wide release in comparison to his earlier music. In 1978–1980 performances, Sun Ra added a large electronic creation, the Outerspace Visual Communicator, which produced images rather than sounds; this was performed at a keyboard by its inventor, Bill Sebastian. During concerts, the OVC usually was positioned at center stage behind the Arkestra while Sebastian sat on stage with the musicians.{{cn|date=February 2024}}