Do you mean the trio for Trumpet, Violin and Piano? It's the only one I know of by Ewazen, but it's not in E flat. If we are talking about the same one then I agree. It's a great piece. I played it last year and really enjoyed it. You can get it from the Southern Music Company, San Antonio, Texas. If your into his stuff he's also written a Sonata for Trumpet and Piano which is nice (although it does go on a bit!). Hope that's some help.
