I will definitely see this band as well if the opportunity arises; it's just that Dewey made Ballad Of The Fallen really special for me. As he once said himself in an interview, he was at his peak in the early 80s.
I saw the LMO twice. Once was 1985 in Vitrolles, France. The concert was delayed quite a bit because apparently Haden was ill, but the show did take place. The Carla Bley Orchestra half of Ballad Of The Fallen was not there, but Pepper, Redman and McIntyre were. They really played only a few ensemble passages, but most of the night was one long solo after another. Dewey took an absolutely amazing 20-minute solo that was the highlight of the show.
I saw them again at the Duke Ellington school in D.C. in the early 90s. This was a better show - the arrangements were much tighter. Dewey was not there, however.
Bertrand.