My macOS iTunes music library includes over 21,000 songs. Some of those tracks contain the wrong information. Wrong title, wrong album, wrong artist, wrong year.
I have ignored my MacBook Pro for a few months. Now my iTunes and Rhythmbox music libraries are out of sync. The Rhythmbox library includes a handful of Ogg Vorbis files. Because iTunes does not support Ogg by default, I will use FFmpeg to convert those files to MP3. For the sake of novelty, Perl 6 is the glue language for the task.