For example, he conducted an excellent performance of Moses und Aron by Schoenberg.

Indeed, I got to know the work in this recording (on Philips LPs) and still rank it very highly.
Arturo Tamayo, who’s offered us loads of very interesting but relatively obscure repertoire on many labels, surely deserves mention here. His
Maderna series on Neos and the complete
Petrassi Concertos for Orchestra on Stradivarius stand out, but he’s also done
Auric and
Bussotti on Timpani, a superb
Ginastera disc on Capriccio, etc.
And then there’s
Manuel Rosenthal (his
Ravel and
Debussy on Adès are too-notch) and
Ernest Bour; his sets on Astrée —4 CDs each— devoted to i) the Second Viennese School &
Bartók, and ii)
Debussy,
Ravel,
Stravinsky &
Roussel, are extraordinarily good.