This has always bugged me, and is there really any standard convention on the "official" way to write/tag these tracks?
The CD jackets do not appear to have a space between that track title and the "(instrumental)," so which would be considered correct?
track(instrumental)
or
track (instrumental)?
EDIT: forgot my
example.
The lack of a space is pretty much consistent for all the K-ON! releases, and it's quite common for other releases too (
example 2).