I don't have any experience with using benzyl salicylate, so I'm afraid that I can't really answer your questions. I've read descriptions of the odor of this and similar compounds and they seem to have a range of faint aromas that span a broad spectrum. When you combine the full spectrum of light together you get white light and when you combine the full spectrum of sounds together you get white noise. Could benzyl salicylate have a broad range of faint notes, that combine to form an indistinctive, white smell? Giving a sense of dimension or space, for other aromas to play around in? Or perhaps it has a broad range of faint aromas that help to bridge between other aromas and make the fragrance more cohesive? Anyhow, it's just an idea. Hopefully someone knows the answers your questions.