Thank you all for responding, it's interesting to know what people think about this kind of stuff.
Graham, to answer your question, these diagrams aren't for analysis, but they insead act as a sort of blueprint for a song. The diagram is purely for the song structure itself, it has nothing to do with the individual notes or chords being played, but instead each block represents a unit or segment of music. I create these diagrams first, then make the music based on them.
Gongchime, interesting what you were saying about geniuses and visual representations... To answer your question, the spirals indicate the start of a segment to be repeated, and the horizontal dashes indicate approximately how many times I'd like to repeat it. Originally, the "squishedness" of the spirals were supposed to roughly indicate tempo, but looking back, this idea doesn't make much sense considering there are no other tempo indicators for the non-repeated segments. I'll try to go into a little more depth for you about what this all means, just bear in mind that I'm not formally trained in music theory, so I use terms and concepts that make sense to me but may not be the proper terms for them or may not even exist in actual music theory.
Each block, as I said, represents a cohesive unit of music. Blocks of a same color are derivatives of the same musical idea. The blocks are sectioned off into "measures" or smaller segments within the larger block, and an "x" is what I call a difference tick, meaning there will be a slight variation in that measure. Smaller blocks either under or above the colored blocks indicate accompanying parts.
Blocks with a half-filled circle indicate what I call "connective transitions" which are basically transitions that blend the ideas of what comes before and after the transition. Blocks with a x-ed circle represent what I call "unique transitions" which transition one segment to another using an all-together new musical idea.
Free standing circles indicate "embelishments" which I view as little ornamentations or slight variations in teh musical idea. Open circles indicate "additive embellishments" which are little ornaments consisting of a new instrument simply adding a piece over the existing section, whereas filled circles represent "destructive embelishments" which change the essence of the main musical idea.
I call the wedge shaped triangle "buildups" which simply mean that the particular section gets more intense towards the end.
There is a bracket right after the first repeated segment that I call a "fusion bracket" which simplifies and condenses the instrumentation of the bracketed segment to create a new, solid block while still maintaining the essence of the original musical idea.
This "language" is still a work in progress and I'm sure lots will be added or changed as new things become nessecary, but this will give you a basic idea of what that crazy diagram is all about.