@deivudesu I mean, would an interview on film be considered an *output*?
https://medium.com/hypeline-news/the-rolling-stones-taxes-4c4e90e3cf0b#:~:text=under%20the%20Labour%20government%20of%20Wilson%20was%2093%%20if%20you%20earned%20a%20million%20quid
(though I don’t condone the overall message of the article)
As an *artistic* output, we could argue that naming their subsequent album “Exile on Main St.” could be linked to their refusal to pay taxes.
If it can’t be counted, let’s turn to the Kinks:
“The tax man’s taken all my dough
And left me in my stately home
Lazin’ on a sunny afternoon”
The Kinks, Sunny Afternoon (1967)
or the Yardbirds
“Taxman, rentman, they all chase me
I ain’t home when they come round”
The Yardbirds, I Can’t Make Your Way (1966)
What I mean is, the Beatles might have paved the way but they were not alone in their resentment :)
(and I’m not defending their stance or their ideas, I’m just googling to support something I said on the Internet)