Metamorphosen (Transformations) is a beautiful, sombre 32 minute dirge for war-torn Europe. It's this piece that was responsible for me finding out about Henryk Gorecki and Arvo Pärt, and you can definitely hear the influence at times.
If you find yourself here in Edinburgh at any point, do drop in on McAlister Matheson Music. This independent classical store has been in business since the 90s [UPDATE: and unfortunately closed at the end of February 2017], and it's where I picked up Transformations For Strings, on spying the inclusion of my favourite Richard Strauss work. Aside from the great version of Metamorphosen, the Seattle Symphony Orchestra kick off this programme with Anton Webern's Langsamer Satz, a string quartet that perfectly complements the Strauss work. There's also a fine rendition of Swiss composer Arthur Honegger's 2nd Symphony, which I really should listen to more.
Transformations for Strings