There is a BBC Documentary on the development of Southern Rock, called Sweet Home Alabama – The Southern Rock Saga. While watching this, I learned about the history and recording of another version of Hey Jude, performed by Wilson Pickett and Duane Allman in 1969, just months after its release. It is an example of musicians as activists, in a peaceful demonstration that music, as well as tragedy, are colorblind. Please give it a listen, because it is difficult to find a song that is so deeply moving.