I've been going through my collection, as well as a bunch of Youtube performances, of the ending to M8. The best endings so far are Markus Stenz (Oehms), Jonathan Nott (Tudor) and Antoni Wit (Naxos). I'm guessing that Maazel/N.Y. would very strong as well. David Zinman is also really good, but there isn't enough of the tam-tam at the end (everything else is great). Boulez is actually quite good, but it could use both more organ and more tam-tam. Dudamel is quite good as well, but also a tad on the quick side for my taste (I love his huge choral forces!). Colin Davis also has a very well judged ending, but his recording could use a bit more organ. Oh, and yes, Chailly is really terrific on dvd (Leipzig). Anyway, let’s dig in.
In 'studio' recordings the strings, woodwinds and chorus should all be left out of the session (I’m talking about just the orchestral ending). At some point, the tape should be spliced with the unnecessay forces left out for more hall resonance. I suggest it could be done at the spot where the timpani come in, answered by suspended cymbal crashes - and, by the way, I think those suspended cymbal crashes should be amended to three pairs of hand cymbals (use suspended cymbals at the very end, where the cymbals are unison with the tam-tam).
Anyway, the ending could be recorded with just the offstage brass (which could be placed anywhere that works best), onstage brass, organ (ALL stops out - pedal to the metal!) and percussion. Two bass drums should be employed, so that the timpani only have to play forte (not fortissimo). The bass drums should be tilted sideways or facing downwards for more even rolls. One bass drum can make a big crescendo on the final chord, while the other bass drum handles the final 'thwap' at the end. The tam-tam needs to be at least a 100cm (40'') Wuhan type - not a Paiste. Ideally, a 120cm (51'') Wuhan should be employed. The gong mallet needs to have a large surface area. Otherwise you get too percussive of a start to the note (the Amsterdam Concertgebouw is actually bad about that, believe it or not).
For better resonance, the tam-tam should be turned so that the narrow flange is facing the conductor and audience. In nearly ALL performances, the face of the tam-tam is facing the audience. That is, of course, the most visually pleasing placement; but it's not the best in terms of sound and resonance. In addition, the tam-tam should not be placed too close to the back wall. The cymbal that’s marked in unison with the tam-tam should be, in my opinion, ammended to two suspended cymbals, played by two pairs of cymbal mallets (a pair on each cymbal). They should be struck near the edge on opposing sides, and be permitted to resonate like a gong. They should be fairly large suspended cymbals. In addition to all that - and perhaps most importantly - they be should be struck just slightly AFTER the tam-tam. In far too many recordings the cymbals speak much quicker than the tam-tam, with the unfortunate result of the tam-tam being completely covered over. Wrong!
The point of all this is not to make the ending louder, but to make it clearer, stronger and more ‘profound’ sounding that it normally comes across. In far too many performances, the conductor becomes so overwhelmed with emotions that he actually takes the ending too quickly. Conductors rarely address percussion issues, so the players tend to read the page TOO literally, with the unhappy result of the cymbals covering over the tam-tam (as previously discussed). The ending to Mahler 8 should not be treated as just a ‘postlude’ to the rest of the symphony. Instead, it should be treated for what it is at face value: the culmination of ALL western music up to the year 1910.
Markus Stenz (jump to 10:03). This is the right idea!
https://www.youtube.com/watch?v=qRWwPcQGzIQsay what you will about Maazel (Munich), he gets brass players to blow like nobody else (jump to 7:30)
https://www.youtube.com/watch?v=gu-FAO7uQvwAnd even if he over-conducts, there's nothing like the thrill of Bernstein
https://www.youtube.com/watch?v=hQRBdv29Q5IFinally, let's not forget Gary Bertini, even if the cymbals drown out the tam-tam at the very end
https://www.youtube.com/watch?v=NRoP5q7yvBw