Python dependencies:
- coloredlogs (cf. https://pypi.python.org/pypi/coloredlogs)
- mutagen (cf. https://mutagen.readthedocs.io/)
External dependencies (command line):
- flac (cf. https://xiph.org/flac/documentation_tools.html)
- lame (cf. http://lame.sourceforge.net/download.php)
- ctorrent (cf. https://sourceforge.net/projects/ctorrent/)
- sox (cf. http://sox.sourceforge.net/)