The first version has been released. Check out my blog entry at http://phphalo.com/blog/archive/id/6 for more info.
The development of Aqua Music Database is dead. Instead I have started a new project musch like it, Aqua Media Database! It will replace the old Aqua Music Database. I have changed the project subscription and Trove categorization to justify this. There are no releases yet but there will be as soon as I finish the features planned for the first release. The version number will start from 0.1.0 and the state of the app will be alpha.