Do you know about ReplayGain? It automatically adjusts the volume so that you don't need to. It's really useful. That red T shows up because some of your songs haven't been ReplayGained.
Else, if you don't care about ReplayGain, you can remove the colomn by going to:Foobar2000 > Preferenes > Display > Columns UI > Playlist view. Then click the tab "Columns". Look down the left side and find "Title". Then look right in the display tab. Scroll to the bottom and find a section about ReplayGain and delete it.
[a href="index.php?act=findpost&pid=356873"][{POST_SNAPBACK}][/a]
$if(%__replaygain_track_gain%,,%_rone%|%_rtwo%$char(10007))
$if(%_albumgain%,
$if(%__replaygain_album_gain%,,%_rone%|%_rtwo%$char(10007)),),
$if(%__replaygain_track_gain%,,%_rone%|%_rtwo%T)
$if(%_albumgain%,
$if(%__replaygain_album_gain%,,%_rone%|%_rtwo%A),)))
I deleted these lines and got a syntax error line beside every track name. Which lines specifically should I delete?