Lou Reed’s 1965 demo of Velvet Underground song ‘Heroin’ has been released, ahead of a new compilation of archival material to mark what would have been his 80th birthday.The track was recorded with John Cale two years before the release of the band’s debut album, ‘The Velvet Underground & Nico’, and is around half the length of the final version.In an effort to gain copyright protection for the recording, Reed posted the tape to himself in an envelope that then remained sealed for over 50 years. It’s a myth that mailing work to yourself somehow instigates copyright protection, by the way, but that fact doesn’t seem to have harmed Reed at all.The release follows the demo version of ‘I’m Waiting For The Man’, which came out last month.