Ludwig van Beethoven - String Quartet in C-sharp Minor, Op. 131 (1st movt.: Adagio)
I did a thing.
Matt Corby - Made of Stone (Live at Studios 301)
Hozier - Take Me To Church 
Árstíðir - Heyr himna smiður (live in train station, Germany 2013)
The Icelandic band Árstíðir are touring in Germany and came across this train station in Wuppertal, where the natural reverb prompted them to perform the beautiful Icelandic hymn Heyr Himna Smiður. Written by Kolbeinn Tumason on his deathbed in 1208 during the Víðines battle, it is one of my absolute favorite hymns and the members of Árstíðir do a fantastic job of performing it.