Jason Isbell's class action against Suno is about identity, not copyright
Jason Isbell, David Lowery, Guy Forsyth and Eduardo Calle have sued Suno under state publicity laws and Illinois' biometric privacy law, not copyright. They say Suno's model knows musicians by name and voice. If the theory holds, it gives artists who don't own their masters a claim of their own, though as drafted it favours the famous.
Artist rightsvia US District Court for the District of Massachusetts (via Music Business Worldwide)