Some have suggested that it is the result of early experiments with LSD and that it might have been 
Some have suggested that it is the result of early experiments with LSD and that it might have been partly inspired by Bruce Langhorne, who provided the back-up electric guitar on one version. Judy Collins recorded a cover of it for her album Judy Collins 5th Album,* but it is better known for another cover version. One of only two songs appearing twice on Rolling Stone's list of the 500 Greatest Songs of All Time, along with "Walk This Way", this is, FTP, what song originally recorded for Bob Dylan's album Bringing It All Back Home and covered by The Byrds for their album of the same name?
Some have suggested that it is the result of early experiments with LSD and that it might have been partly inspired by Bruce Langhorne, who provided the back-up electric guitar on one version.
“Mr. Tambourine Man”