Linux.
Music/%albumartist%/%album%
Music/$if(%albumartist%,%albumartist%,%artist%)/%album%
Parent dir should already default to $HOME
.
$HOME/Music/Panic! at the Disco/Pray for the Wicked/
$HOME/Music/Various Artists/Hatsune Miku Magical Mirai 2014 OFFICIAL ALBUM/
$if($isdigit(%discnumber%),%discnumber%-,)$num(%track%,2) %title%
If discnumber
tag exists:
2-01 キャットフード Cat Food.flac
Otherwise:
10 Tears River.flac
$if(%albumartist%,%albumartist%,%artist%)/%album%/$if($isdigit(%discnumber%),%discnumber%-,)$num(%track%,2) %title%
Windows.
$if2(%albumartist%,%artist%)\%album%\$if($isdigit(%discnumber%),%discnumber%-,)$num(%track%,2) %title%
Same as above, but due to Mp3tag's action function streamlines dir renaming, do both in a single line