A new crossdevelopment tool has been released, the Wyztracker. The Wyztracker is written in .NET 2.0, so you need the Microsoft .NET runtime to run it on your system. You can play the music files with Artaburus CPCRslib for Z88dk. Currently the user interface is only available in spanish, but they are working on a release with an english translation. You cen get the files and more informations in the CPCWiki forum thread.