CloisteredFlame
TETOTETOMETOME
"Switching countries". Hmmm... Well, the original singers were from other countries so...to be fair, the exact phrase the Japanese fans used was literally switching countries. They said that Kajiura has a set preference for Joelle to sing the English songs. Kajiura doesn't have that many English songs to begin with, so while Joelle sounds great, it gets kinda boring to just have her sing those songs.
If they were attending the lives, she would literally be switching the countries.
I agree with grunty that a change of setlist would be better than focusing on changing singers. I am pretty sure that Kajiura sees Joelle as properly replicating the communication of Emily and the others (I feel it's a major consideration for bringing her in). Yes, maybe one or two of the other English songs could be moved to Keiko/Kaori since they've sung them before, but Joelle should still sing most of them as she's been doing. The songs themselves should just be performed less.
Kajiura has written too much music to be limiting herself to a rotating list. Maybe there's still a learning process for the new singers to catch up on all the songs so she's keeping the ball rolling while they rehearse.