I’m going to throw an odd one into the mix: Friede auf Erden(“Peace on Earth”) by Arnold Schoenberg.
Before you recoil in horror and go “Urgh! Schoenberg!”, note that this is Schoenberg before his break from tonality to atonality. This is a lush choral work - I know you said you prefer non-choral, but still - that occasionally explodes into dissonant chaos and then settles back into that rich tonal lushness. It’s not long (about ten minutes), and I would thoroughly recommend listening to it all the way through.