Maybe they are listening with a speaker. In stage they don't have any chose so they use iem. But in studio they can use speakers or headphones instead. But sure they know song perfectly because, even if they are using iems on stage they are playing those songs for years.
One thing that interests me is how they perform perfectly in time even though they are separate. None of the band members were wearing IEMs so maybe they just know the songs so well off by heart they can play solo without any reference.
We literally went through this 2 eras ago, i believe in the same festival as well. We saw the new set theme, new piano, new decorations and thought they must be playing something new.
Please stop doing this to yourselves. They'll release something when they're ready and clearly they're not. It took me a bit of time as a fan to realize this, so let me save you guys some stress!
On the positive, I did enjoy listening to those hits for the thousandth time actually hah. And I really liked the fact that they fit in Trouble In Town in the set, my personal fav from the previous era. I guess since it was prerecorded, the sound techs could tweak things and it showed in the quality. Loved the visuals as well, but its funny to imagine the broadcast without them to see how plain it wouldve been!
As mentioned before, I only check in very occassionally now since its offseason, so anything else to look forward to from the band? Or are we all hanging out in a LP9 clues thread of some sort? I know they were posting some things on social media that supposedly will spell Music of the Spheres and whatnot.