Consider adding additional Details - BPM? [Enhancement]

[cjhoffmn]

I'm writing a script that is analyzing libraries of music, estimating tempo (BPM). I want it to write the BPM tag back into the metadata I'm working in Windows at the moment - and note that in windows, and most music tagging software - BPM (or Beats-per-minute) is available as an editable data item. I'm primarily editing .wav and .mp3 files' information.

Your library is one of the easiest to use in my opinion, but doesn't have the BPM in your dict of the editable items. I did take a quick peek at Mutagen and your music-tag code, but I couldn't find the specific place to suggest an edit...

I do think I figured out the the ID3 Frame is 'TBPM' but I'm not 100% that's how it works for all formats etc.

Would you consider adding BPM to your dict?

[cjhoffmn]

I did learn how to do it from Mutagen - but your library is so nicely put together :) I hope you will consider adding it :)