Briefly. I just watched Brahms' Ein Deutsches Requiem with Patrick Marco on medici.tv from somewhere in France. They performed with 2 pianos and timpani for "Den alles Fleisch" which would sound quite odd without drums. It sounds quite odd anyway, but is more transparent this way.
Everything that Cecilia Bartoli is singing in for Pfingsten is already sold out. Including this piece. Sigh. Norma will be repeated in August, but not the Brahms. Maybe they will stream. I feel a mixture of profound curiosity and fear about hearing this. I know people sneer, but it is my favorite piece. Enough.
P.S. I posted this in a comment, but I think it might go better here.
I have always heard sincerity in Brahms. Everything about the deutsches Requiem is his own creation--the choice of text, the structure, the music, the orchestration. It is all his personal musical and religious expression.
I was good with the two piano format because it is known that this is the format in which Brahms often composed. Perhaps it's even authentic.
Wagner jettisoned the whole idea of structure and invented his own structure by free association.
I always admire Brahms for his life long attempt to create in the traditional structures.
I always hear humility in Brahms, a character trait entirely missing in Herr Wagner. The Wagnerites hate Brahms for just this quality.