Here is a quick rundown of Tag's features:
- Full tag editing support
- Album art support for most formats
- Audio fingerprinting using AcoustID and Echo Nest
- Replay gain calculations for both tracks and albums
- Discogs integration, including album art
- Ability to guess tags based on filename
You may download it from http://files.sbooth.org/Tag-1.0b5.zip
Tag requires Mac OS X 10.7 (Lion).
Tag will be distributed via the Mac App Store, so does not support automatic updating in this version. Please check back for updates.