A question for Barry, Dave, or anyone else who might know.
A local orchestra is doing M2 this weekend and the conductor has asked that Timpani I and Timpani II be placed on opposite sides of the stage, claiming "this is what Mahler wanted." I spot-checked some recordings this afternoon and found that most conductors put the two sets of timpani quite close together, for example Klemperer, Walter, Kaplan (both), Solti (Chicago), Bernstein, Maazel (NY), de Waart, van Zweden, Honeck, Mehta (Vienna), Litton, Slatkin, Farberman, Kubelik, Bertini, Segerstam, Tennstedt, Abbado (Lucerne), Rattle, Haitink, Gergiev, and Chung. Solti (LSO) shows moderate separation, but both sets are still in the same general area.
I found only two recordings with an extreme left/right timpani placement: David Zinman (Zurich) and Herbert Blomstedt (San Francisco).
I've researched the literature available to me but found nothing suggesting Mahler preferred widely-spaced timpani. Surely Gilbert Kaplan would have uncovered any such preference and employed it in his two recordings. As I look at the two parts, they don't really seem to have been written with antiphonal effects in mind. Does anyone here know something about this?
James