and Connie.. the Emerald is pretty much the same as the Ruby. About the only change we can see from people getting off her, is the addition of the pub lunch :lol
So perhaps these photos of the aft deck of the Emerald will help you out.
I cannot see 300 people crowding into the Adagio bar :lol so I think they may hit crooners. as that bar is in the atrium area, so plenty of 'spread" room.. Or perhaps Explorers.
Or if they do head Aft.. then I would expect them to fill the area around that aft pool bar. check it out..

although the bar is small, it is not as small as the one in Adagios, and there are a lot more set options around here.
And this will show you locations.
That area outside the windows of Sabatini's is a nice quiet area during the day and early evening for you to sis and read.

and here are two other bars.


I do not understand why I can find no pictures of the inside of Adagios.. as on both cruises, we spent a lot of time in it :lol But it was intimate and cozy.. and you got to either by that outside door in the pictures, or the inside entrance is next to Sabatini's.