Some lost footage of legendary guitarist Jimi Hendrix has recently been found.
It has been sent over to the Rock and Roll Hall of Fame where the people who work there are running it through a projector. It appears to be an interaction between Jimi and a record company executive: "Jimi," the record company executive says, "I've got some songs for you to listen to and I'd like your feedback. I've brought someone over to play them for you."
The singer who has accompanied the executive dons a guitar and plays a few songs. When he finishes, the executive asks, "So, Jimi, what do you think?"
Jimi straps on his guitar, holds it close to the amplifier and jams one jam. The sound reverberates between the guitar and the amplifier and back and makes for a loud low-frequency tone which lasts about 5 seconds.
"OK, Jimi," said the executive. "Thanks for your feedback!"