The one hundred and seventeenth classical recording: #957 Arvo Part - Fratres
Although instrumentation will affect how you would look at this piece - it is not scored for anything specific - in the version for violin and strings and percussion I heard the piece sounds somewhat melancholic throughout. Sometimes it comes from a lonely violin, but when it bursts forth in a larger setting it still has this slower sound to it, a frantic violin on top as it seems to want to break through. It's a great mood piece and its use in all sorts of productions shows how it works to set that mood and it stays effective, being only about ten minutes long.