Links don't always last, so try to include some context in case it disappears later. Jack's article is titled:

UK bands now have to pay import duty and VAT on ALL merchandise before even entering Europe to tour

. . . No Deal Brexit is set to be a nightmare for everyone, including bands. This is all laid out in government documentation. . . . Good news, you even have to apply for a VAT number and apply for an EORI number which means, according to the Government's own website, “you may have increased costs and delays”. This will literally destroy any opportunity for UK artists and bands, mainly independent ones, to tour the EU. How many artists will be able to afford to pay their entire VAT and duty on merch before even selling it? On top of the costs already suffered by bands to tour the EU.

I've extracted just a bit to show the concerns for working musicians.