In the desktop world, there is virtually no end to the number of music and video managers out there. MediaMonkey was one of the not-quite-legendary-but-still-popular options that excelled for its ability to change tags and run custom scripts. Now, users of this program can sync to their phones without going through an extra program with the MediaMonkey for Android beta.
The beta APK is currently available over on Reddit, and obviously comes with some disclaimers, and you'll have to install the newest version of the Windows app to use it. Once you've done that, though, there a host of features already available: