When the Seventh Chakra is blocked and bound, a sense of mental agitation stemming from not being able to "see the forest for the trees" can overwhelm you. Confusion and doubt are often present, stemming from an inability to focus o the task at hand.
The open Crown will give you the understanding of how to integrate your diverse experiences and perceptions into a unified whole. You'll find yourself easily able to focus simultaneously on the whole and its constituent parts. And most of all, the work of opening the Seventh Chakra creates the experience of oneness and clarifies your understanding of surrender and acceptance, the last steps toward becoming your essential self.
Here's a video of Piano Improvisations in B Major, for more ideas on music in the key of B, see this list of compositions in the key of B, and also Jazz compositions in the key of B.