Recover a corrupted playlist

[sbga420]

Ive spent the last two weeks working on a rock playlist for work and today windows 10 decide to bloat my c drive and run out of free space, causing musicbee to crash when adding a song to the playlist. Now the playlist file is 0 bytes and it seems I'm screwed. Please tell me musicbee silently has a library backup that I can recover some of my work from 

[Steven]

As long as you are using v3.3+ (possibly earlier versions as well) MB first saves to a temporary file in the same folder with a .tmp extension. Only if the file save successfully completes is the playlist replaced.
So look for the playlist name with a .tmp extension. Otherwise if you dont have any backups then you are out of luck