sunlight is a tagging swiss army knife for audio files

Usage: sunlight.py [-catdnivz] [OPTS] [FILE/DIR]

Options:
  --version          show program's version number and exit
  -h, --help         show this help message and exit
  -c C, --copy=C     copy TAG SRC
  -a A, --add=A      add TAG VAL
  -t T, --tag=T      tag TAG
  -d D, --delete=D   delete TAG
  -n, --names        set filesnames from tags
  -i, --interactive  edit tags with $EDITOR, combines with -t
  -z, --zeropad      zeropad tracknumbers
  -v, --verbose      verbose

`sunlight' will print tags for all files in cwd recursively

passing a file or path will perform operations on those files

`sunlight -i' will edit tags in $EDITOR, one file at a time

`sunlight -i -t title' will edit a single tag in $EDITOR, all
files at once

you can omit -a when passing two arguments (regardless of FILE/DIR)
if the tags are recognised:

`sunlight comment "Downloaded illegally"' will set the comment
`sunlight tracknumber' will display the tracknumber

editing my_tags will change which tags are "recognised" for the
above shorthand

`sunlight -n' will set the filenames akin to "01 - Title.flac"