I made up a list of favorite pieces (that also happen to be piano pieces, or have piano reductions) and just made a subset of the ones in the more relaxing vein. You will probably enjoy the orchestral versions.
YMMV, of course, and some composers wrote so much that I haven’t gone through their works yet. I’ll make a new paste when I update it, now that I made the first version. Pieces that get a bit loud in places are called out.
was expecting mostly pre 19th century, but good list: Bill Evans, Gymnopedie, JSB Cello suite. Recently i've been doing Bartok, SHosta, Ives, minimalists, Ligeti, Messiaen, Varèse, Hindemith, you know the kind of stuff not often described as relaxing
YMMV, of course, and some composers wrote so much that I haven’t gone through their works yet. I’ll make a new paste when I update it, now that I made the first version. Pieces that get a bit loud in places are called out.
https://pastebin.com/raw/qzHMaZRR
It would be a real challenge to make a shorter list!