Hm, I have the album Thought-Tormented Minds but haven't listened to Greyswan for ages, to be able to recognise this song. Thanks for reminding me, though, I should give it a listen sometime I think.
DO doesn't need any changes imho - it's perfect as it is and the vocals as they are done, are an important part of that atmosphere they created. TD could benefit much from proper re-mastering, but I don't see/hear the need in re-recording it in it's entirely.
Yesterday's gig in Vienna was setlist-wise quite similar to the Hamburg posted before. What a great evening, all three bands were great!
[INTRO]
FORSAKER
CONSTERNATION
LIBERATION
DAY & THEN THE SHADE
ONWARD INTO BATTLE
SOIL'S SONG
WEALTH
TEARGAS
SAW YOU DROWN
IDLE BLOOD
MY TWIN
THE LONGEST YEAR...
I wouldn't rank 'Sold Heart' (much) higher than most of NitND, but it is indeed a special song, as Unfurl was. As mentioned before, an album in the vein of these two songs would be awesome, but also I think the dynamics would be missed for sure.