The majority of the tracks on Valleys of Neptune were recorded in early 1969, while Hendrix was experimenting with songs for his unfinished fourth album, following the successful release of Electric Ladyland in September 1968.
Većina pjesama koja se nalazi na albumu Valleys of Neptune snimljena ja početkom 1969., dok je Hendrix radio na njima za svoj četvrti nedovršenih album, nakon uspješnog izdanja Electric Ladyland objavljenog u rujnu 1968. godine.