Orphy Robinson: why Van Morrison's Astral Weeks is a secret jazz masterpiece

The musician celebrates the 50th anniversary of Morrison’s Astral Weeks with a reimagining that draws out its latent jazz energyI remember as a kid regularly going into the West End and spending all of my money on records – so much so that I wouldn’t have my bus fare home. I had a nice hi-fi system so all the local kids would come round to hear the latest albums. It was a ritual: we would sit on the sofa and play the whole thing. We’d want to know what the album was sayin