TODO

tagging

convert all mp3 tags to v2.4
edit mp3 date tag to use the full release date with the correct formatting
synchronise publisher tag stylisation across the library
for groups, ensure publisher tag only ever contains the main agency they're under
fix content group tag for various artists / compilations (smtown, high school rapper, show me the money etc.)
improve genre tagging by adding tags for hiphop, electronic and k-indie where applicable