Bragg gave a speech against bonuses for RBS bosses in London last month
Musician Billy Bragg has taken his protest against excessive bonuses for RBS bosses to Edinburgh, the home of the bank.
He is calling on Chancellor Alistair Darling to cap bonuses for chiefs at the bailed-out bank to £25,000.
The campaign currently has 30,000 online supporters.
Bragg is refusing to pay tax on his earnings until the limit is imposed. He delivered a speech at RBS' former headquarters in St Andrew's Square.
After the event, the singer-songwriter said: "I'm doing it to draw attention to the fact the bankers seem to think it's business as usual now.
"They're starting already to talk about paying the kind of excessive bonuses that got us into all this trouble in the first place, whilst the rest of us are being softened up for public service cuts.
"Considering that this hole in the public purse has been caused by the bailout for the banks, the bankers should be leading the way in making economies."
RBS, which is 84% owned by the taxpayer following a string of bail-outs, is expected to pay millions of pounds in bonuses to its investment bankers this year.
Bragg, who released the hit album Talking With The Taxman About Poetry in 1986, is urging people to send letters or e-mails to the chancellor as part of his online campaign.
Asked previously about the prospect of going to jail for refusing to pay his taxes, Bragg said: "I'm hoping it won't come to that.
"This is to draw attention to the issue. Either we own 84% of the company or the entire thing is a sham.
"I'm fed up with no-one doing anything about it."