Apple has seeded a second beta version of iTunes 11.1 to developers, several weeks after the debut of the first iTunes 11.1 beta. The second beta comes after an emergency update to iOS 7 and the release of iTunes 11.0.5, both of which fixed an issue with iTunes in the Cloud, so it is probable that this update addresses the same issue.
Apple's iTunes 11.1 includes iTunes Radio, which is Apple’s upcoming Pandora-like music streaming service. The updated software is expected to debut in the fall alongside Apple's iOS 7.
iTunes 11 Beta 2 can be downloaded via Apple’s Developer Center.