Photography

I know we all want to be aggrieved copyright lawyers here. You are right, the band failed his contract because they didn’t enforce the credit.

But my analysis is reality.

OP let the band use his pics for promotion, naively thinking that they would have full control of every use and he would get credit. They don’t have full control. They aren’t the end user. They hand out the pics for promotion and have no control over how or if they are published. The newspaper receives a massive number of hand out pics. They accept them because it is free and convenient. Everyone understands that publishing them is helpful for the person who submitted them. Somebody there may care about trying to give credit. Maybe nobody does. Even if they want to, there are a lot of potential breakdowns.

Probably there is a written policy that by submitting a handout photo you attest that you have full rights and are granting full rights to the paper without credit.

OP can go after the band and burn that bridge. Op can invoice the paper and that will burn bridges with the paper and the band. Or OP can understand the nature of handout photos.

Where do I get my opinion? Some comes from being a photographer who does promotional photos and file photos that should be credited but several times a week are not. Most of it comes from being the guy who received, edited and published the handout photos at several major daily newspapers.