There’s a song by Anthony Hamilton called ‘Freedom’ on the  official soundtrack album to Quentin Tarantino’s Django Unchained but one notable absence from the disc is the song with the same title by Richie Havens.

This was performed at Woodstock in 1969 and, so the story goes, was a spontaneous, unrehearsed outpouring of passion and inspiration.

Havens was the first on the bill and as the other acts were late arriving he was asked to keep going to keep the crowd entertained. They say that necessity if the mother of invention, Havens was doubtless also helped by some chemical substances – whatever inspired the song it worked….. in spades.