I'm a little late to the party.

First, congratulations on finding some rewarding outlets for your talents. Long may it continue. I'm much the same age as you and rather frustrated at the moment that I don't have such an outlet.

Then two things about the "Trout".
1) Many years ago I took my eldest son to one of Hilary James' and Simon Mayor's "Musical Mystery Tour" shows, and after that all my children got great pleasure from their cassettes (I said it was many years ago). One cassette included this wonderful treatment of the "Trout Quintet" with non-Schubertian lyrics The Slippery Slimy Trout - hopefully some others will also enjoy it.

2) More recently we got a Samsung Washing Machine and also a Tumble Drier from the same manufacturer. When they finish a cycle, they play a short burst of the "Trout" which always makes me laugh and break into Simon's song...