copyright should not be an issue, no one is trying to make money off the song.
The winning song would not be a note for note copy of the record, no more than a live Eagles performance matches the recording. It would stretch the ingenuity of BIB/RB enthusiasts, what drums to use, where is that reggae rhythm guitar, how many time do I go through RB multi-riffs to build the guitar duel at the end?
You don't really see a copyright issue, do you?


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