According to the makers, Song Sergeant intelligently resolves duplicates, fixes inconsistently named artists and albums, and copes with missing and orphaned song files.

Song Sergeant is capable of merging song files together instead of just deleting extras, letting you keep the best song information and best audio quality even if they're from different song files or downloads.

A detailed "related songs" drawer promises to help you make decisions on what to keep and what to delete.

Song Sergeant costs $20, currently £12.82 at the LairWare store, while a demo version is available for download.

Song Sergeant requires Mac OS X 10.5 or later and works on both Intel and PowerPC based Macs. The application requires an Internet connection.