The premise here is a bit narrower than it sounds - it's not really about Anthropic specifically, but about a much bigger pattern where music labels are suing multiple AI companies over training data. The core issue is copyright. When you train an AI model on songs, you're essentially feeding the system massive amounts of copyrighted material without permission or payment. The labels argue that's the same as if someone photocopied their entire catalog and distributed it. They want either licensing deals (which means payment) or for the AI companies to stop using their music entirely. It's not that they think the AI will replace musicians directly - it's that they weren't asked and weren't compensated for what's arguably their most valuable asset.
The royalty angle is secondary but real. Labels are worried that if AI can learn from their songs for free, why would anyone license music the traditional way? If an AI can generate something that sounds like a Coldplay song without Coldplay or Warner getting paid, that undercuts the whole licensing model. The legal theory is basically: you took our property without asking, and that's copyright infringement, full stop.
For regular users, this matters because it affects what AI companies can do. If labels win these cases or force settlements, AI companies might have to license music data, which costs money and could slow development of music-related features in AI tools. Or they might just scrub all copyrighted music from their training sets, which would make AI worse at understanding music overall. Either way, it's not about whether you personally are breaking laws - it's about whether the foundation of these AI systems was built legally.