Stoppard takes on Floyd 'Dark Side'
25 August 2013 Last updated at 09:09 BST
It has been 40 years since Pink Floyd recorded the classic rock album The Dark Side of the Moon.
Back in 1973 the group could not have imagined it would one day inspire a play by one of Britain's best-known writers, Sir Tom Stoppard.
'Darkside' is on BBC Radio 2 on Monday and features pretty much the entire album.
The BBC's Vincent Dowd has been checking out what Tom Stoppard has added to the mix, four decades on.