Give a listen to The Ahn Trio playing music by Kenji Bunch,
especially "Slow Dance" on their "Ahn-Plugged" CD. That may bring a tear or two. His "Swing Shift" is very atmospheric, on their latest CD, "Groovebox"
Also, it seems some of the Estonians/Georgians--Tubin and Nadarejshvili for example--have picked up where Shostakovich left off. Still lots of strife in that part of the world.
It may just be my feeling, but it seems that many normally lyrical composers, such as Copland, really do some atonal, discordant, spine-chilling stuff in their chamber music, string quartets in particular. As if their symphonies, tone poems, etc., are written to appeal to the masses, while they let it all hang out for the more hip with their chamber music.