"EP 16 Score - Black and White" is the theme that plays throughout the episode "Black and White" of RWBY Volume 1, and is incorporated in the RWBY: Volume 1 Soundtrack.
The soundtrack includes the cues "Little Black Bow"[1] when Team RWBY searches for their missing teammate in Vale and "Searching For Blake"[2] when Sun Wukong and Blake Belladonna hatch their plan to investigate the docks and the rest of her team continue their search.