Something told me to listen to Triadic Memories, an hour-long piano piece by Morton Feldman. I've looked at the score and I think I could play most of it without struggle. I think I even "understand" it.
You can try to follow it, as a slow, slow, plotless narration. Or you can have it in the background as soothing yet spooky meditation. Or anything in between. It is not particularly discordant or jarring, though of course most people do not really count Feldman as one of their favorites. I'm saying this because classical music is already a minority taste, and within that contemporary music of this type is a minority of the minority.
I don't know what told me to listen to this. Some resonance that the word triadic had for me, thinking of the word and then remembering the piece. The triad is the basic chord structure, so three notes, root, a third (either major or minor), and then the fifth (perfect, diminished, or augmented).