I was nerding out on the backline, Looks like GP is going through some sort of ashdown head with a VU meter. Then I noticed someone is using a mic'd Yamaha Cabinet, (behind Gilmor) would that be the keys do you think? Or is DG going through it? unusual choice if he is more likely some sort of valve amp to the left of it. , I'd be curious to know what the Yamaha is.