Given a directory filled with FLACs, OGGs, or MP3s, recurse through the directory copying any MP3s to a given destination directory and converting (with metadata intact) any FLACs or OGGs to MP3s in the destination directory. Optionally, delete any MP3s in the destination directory but do not have any corresponding source file in the source directory and prune the destination directory of any empty directories.

See --help for more information on usage