I think it’s important to constantly try different Lighting Setups so that you are always adding to your skillets. This means that when you are faced with different/difficult lighting situations, you will always have options.
In the shot above I used two speedlights with a softbox and a snoot. I placed the key light very close so that we have a very quick fall off of light across the face to give that moody look with the shadows. It also means that the background falls into darkness. I then used the second light to subtly light the background to separate the subject from the background.
This is the same shot processed into Black & White. I will always do this to see which best suits the subjects skin tones and complexion.