Jimi Hendrix recorded the song Hear My Train A Comin’ in live, studio, and impromptu settings several times between 1967 and 1970, but never completed it to his satisfaction.
Jimi Hendrix – Hear My Train A Comin’
“Hear My Train A Comin'” (alternatively titled “Get My Heart Back Together”) is a blues-inspired song written by Jimi Hendrix. It has been called “a powerful blues prayer based on the salvation-train metaphor” of American folklore by biographer John McDermott.
Hendrix often played “Hear My Train A Comin'” in concert using a blues-rock arrangement with accompaniment. He developed it into an extended improvisational guitar piece comparable to “Voodoo Child (Slight Return)”. There are several live performances in release; according to music critics, the 1970 recording from the Berkeley Community Theatre is considered the definitive version. Recent Hendrix compilation albums, such as People, Hell and Angels and the Miami Pop Festival, include additional studio demo versions along with other live recordings. (source wikipedia.org)