DH and I flew BCN-JFK on 10AM AA flight this week. We figured we would be able to use the Joan Miro lounge.
When we checked our bags the AA agent directed us to Pau Casals lounge in T1, after directing us to a Fast Track security line that had zero people waiting.
We saw many other folks who were on our US-bound flight in Pau Casals.

Anyway--it was a very nice lounge. Spacious, clean, very nice selection of food and beverages.