A short track that is constantly rising in tension right until the denouement at 0:50.
Repeating patterns and textures start first in the low strings and then gradually, to increase tension, are echoed and repeated in higher strings throughout the track. There is also the addition of a piano to add a little bit of softness to the slightly harsh / aggressive nature of the way the strings are playing (short, hard, and fast)
This track would be very suitable for any dark, dramatic scene, and particularly the closing track for a trailer.