Very nice choices there. But afraid I'll have to nerd out regarding the Carmina Burana track. The ultimate recording of Carmina Burana is the 1966 Jochum recording with Janowitz, Stolze and Fischer-Dieskau as soloists, published by Deutsche Grammophon. Just listen to the snippet of Estuans Interius by Fischer-Dieskau here:
Amazing stuff
Also,
Hagen's Call to Arms by Matti Salminen
Janecek's Kreutzer Sonata by Alban Berg Quartet - though this one is better for playing Arcanum than AoC
Ahh damn, need some noise!
Reverend Bizarre - They Used Dark Forces / Teutonic Witch