Music Tag is an application that is able to tag multiple mp3 files and rename them back (based on custom pattern). It was designed because we needed a simple application that is able to tag multiple mp3 files and rename them back (based on custom pattern). We weren't happy with any of the existing apps, so we decided to make our own. The result was a simple application, designed to be cross-platform and to combine the set of functions needed to keep your mp3 files tidy. Best of all, it is available for a very low price.