Jimi Hendrix

Jimi Hendrix performs at the 1968 Miami Pop Festival. (Photo Courtesy of © Ken Davidoff/Authentic Hendrix LLC)

Jimi Hendrix in DC

The American Masters documentary "Jimi Hendrix: Hear My Train A Comin," includes never-before-aired film footage of a live Hendrix performance at the 1968 Miami Pop Festival, as well as a poignant clip of his final performance in Germany in September 1970, just 12 days before his death at age 27.

Unlike the Miami show, rock music archivists have yet to discover any film record of the legendary guitarist's three performances in the Washington, D.C. area in 1967 and 1968, but those shows have become the stuff of local legend.