I am trying to create a regex to split a directory format
3 Inches of Blood - 01. Battlecry Under a Winter Sun (2002) [ogg256]
artist - album number. album (year) [quality]
The format of the directories is fairly strict , as shown above, but sometimes the album number may be missing if there is only one album by the same band.
I would like a regex that can handle the album number if it exists or not.