Mineo [1] filed a deletion request for python-mutagenx [2]: mutagenx is unmaintained (https://github.com/LordSputnik/mutagen/), mutagen itself supports Python 3 now (https://www.archlinux.org/packages/community/any/python-mutagen/)
[1] https://aur.archlinux.org/account/Mineo/ [2] https://aur.archlinux.org/pkgbase/python-mutagenx/
