ID3 Tag Manipulator in UTF-16 Encoding
-c --create - do not use old tag value
-e --encode - choose non-ascii encoding (utf16le, utf16be, utf8)
-a --artist - set artist
-g --genre - set genre
-A --album - set album title
-d --disc - set disc no (# or #/# style)
-n --track - set track no (# or #/# style)
-t --title - set track title
-l --length - set length in ms
-i --isrc - set ISRC code
-I --albumart - add album art
-s --show - show text tags
-x --export - export GEOB files
-m --import - import GEOB file
-D --datadir - specify dirctory for GEOB files (%a: album title)