Becky, thanks for those links. Am putting in an alternative to the first one you posted, 'cos that takes me to a "page not found".
However, when I did a search, I did find it (along with another article that might be of interest), so here they are:

From West End to Hollywood as John's songs woo Spielberg

Helping out Spielberg is all in a day's work for Derbyshire folk star John