Also, judging from the name, OP is probably also a fan of Arvo Part. There is a moving “video etude” for the piece Healing of Arinushka that I would recommend if you’re feeling contemplative https://www.youtube.com/watch?v=H7exvD2nJG8
https://www.youtube.com/playlist?list=OLAK5uy_lYC12ZK5DudCAd...
My favorite track was probably Nobukazu Takemura’s remix of Proverb https://youtu.be/-ipSM8bwo4M
Some crazy post-grad at Rutgers convinced enough colleagues to make it her performance piece a few years ago, and it was free to boot, so I drove a couple hours with a friend to see it. It’s great on recordings, and much cooler to be in the room with it live.
I’ve also recently come to love (especially the first half/performance of) Terry Riley’s Persian Surgery Dervishes. With just an organ and a delay pedal, he builds such a trancelike, subdued and dark yet pleasant mood.
IMO, an excellent first listen would be Tehillim. [0]
Steve Reich - Different Trains (Part 1) https://www.youtube.com/watch?v=1E4Bjt_zVJc
Proverb https://www.youtube.com/watch?v=I5lgAUHVFC4
Steve Reich: WTC 9/11 I. 9/11 Kronos Quartet https://www.youtube.com/watch?v=dWhTkOMue70
(ETA: Must have been two years ago as other memories flit in. That was an interesting year too because it was a year I saw two very different live versions of In C, which seems unusual to have occur twice in the same year.)
You might love or hate "Come Out" or "It's Gonna Rain", and hate or love "Different Trains". You might be entranced or utterly bored by "Six Marimbas" but be disinterested or engaged by "Music For Ensemble and Orchestra". etc. etc.
Best to plan on diving in about once a decade and see if you like what he was doing then. My suggestions would be:
60s: Come out
70s: Music for 18 Musicians
80s: Tehillim
90s: Different Trains
00s: Double Sextet
10s: Reich/Richter
Personally, I'm a huge fan of his phase-shifting work, so for me the keys works would be: Six Pianos / Six Marimbas
Clapping Music
Music For 18 Musicians
Music for Mallet Instruments, Voices and Organ
Drumming
There are also some very "pretty" ensemble orchestral works: Sextet
Desert Music
and then ... so much more!For the adventurous, also check out the album "Shift" by Chris Hughes: renderings of various early Reich works (or ideas) using totally different timbres.
Those who have not heard Reich have not heard a lot of western art music, most likely. I went with the piece that is closest in form and style to the popular music of our time.
I apologize to other users here, for not having made that more clear in my post.