Thanks to everyone for taking part. To my mind there has been some genius at work in some of the clues.
Final tally shows Paul and PeterM with 1 vote each, Mattrom with 2, Rossim runner-up with 3 and, with 4, the worthy winner is JWS with:
Trump up fake news not according to the script
Your prize, showing some improvisation, can be found below, along with a tribute (which I'm sure must also have an element of improv) from one prog-rock keyboard legend to another.
https://www.youtube.com/watch?v=vSgfF5-5LTw
https://www.youtube.com/watch?v=UjlIEqLASGg
Also, if anyone can be bothered watching further, I offer a couple more ditties that have nothing to do with the theme, but to this weekend's moveable feast.
https://www.youtube.com/watch?v=jd0nSN90Hgk
https://www.youtube.com/watch?v=UnbxqP0ONFE
Best wishes, all
SW