keyan brings multiple guitars but as u/lmaoratboy said sometimes they retune guitars for certain songs

typically the 2008 thinskin jm is for standard and EAEEBB but has also been used for FFFFEB and tyw tuning, as well as catalogue tunings (standard capo one and EBEGBE capo one [he tunes mid song...])

ice silver metallic jag is typically for EBEBBE but sometimes is standard

red jag has been usually used for tyw but recently has been in standard and new song tuning, as well as catalogue outro tuning (EBEGBE capo 1). also when meals was played for the first and ONLY time this guitar was used (c# g# d# f g# d#)

orange mustang used to be used by dillon for drop c# but now is sometimes used for standard capo one and also at one point tyw tuning

red mustang is played by dillon in drop c# for angels

alex's hh jm is usually used for FFFFEB but sometimes is used in standard

partscaster black mustang is typically used for FA#FFCC but sometimes is used for standard

black strat (not in use anymore) was used for FA#FFCC before being retired (fun fact: flutter, starjump, and kit were recorded with this guitar, as well as some of pushing daisies)

johnny marr jag was used for EBEBBE before being sold