Sounds like a great experience. Had about 6 months of ascetism and solitude in 1997 that did great things. Multiple expansions of consciousness, and the real climax to a process already in the making. Direct communion is darn hard to maintain, though - you've got to drop so much conscious control to reach that level. Now I have a young family and communion is definitely the least of my concerns. For the moment...
What was best is that I was able to bring back
information to work with. New scientific theories and concepts, for starts. My fiction writing is the oulet for those ideas.
I love the music idea that you speak of - certainly felt the interconnectedness, and though I consciously thought of it as music, I don't remember hearing it as melody (I heard some rhythms, but I hear music anyway).
Anyway - great avatar - brilliant colour.