Music duplicate utility?

[badbob]

Is there anything which'll scan my music folder, and display duplicate audio tracks (ideally ignoring caps and slight differences in name) ie

Queen
queen
Fat Bottom Girls
Fat Bottom Girl
fat bottom Girls

Then display bitrate/type, so then can delete the lower bitrate (lossy) version keeping the flac (or higher bitrate version)

Got a load of compilation CD's with tracks that exist on albums released by artists so rather save gigabytes.

 

[badbob]

With 20,000 tracks I really need a filter system, rather than having a list 20,000 long.

 

[badbob]

Cheers used one to remove mp3 dupes, saved about 2.5GB! Removed lower bitrates ones too. However it doesn't search for flacs, so those mp3's that I didn't remove will still be duplicated with flac files.