Function:
When duplicates of a song are found, Poweramp plays the higher quality file.
Why:
There's a few songs in which I have two versions, mp3 and flac (mp3 for compatibility across apps, flac for Poweramp). So sometimes when I play by shuffle, Poweramp plays the mp3 version, and I have to manually change to the flac file.
How:
Scans library for duplicate songs - Files with "same title" or "same title and artist" or "same title and album"or "same title, artist and album" (adjustable by user). Whenever song is played through shuffle or library, play the higher quality file (higher bitrate/bit depth). Also add option to hide the lower quality file altogether.