Tone to tunes

So lately I have been loving me some scales. Not fish scales mind you, but heetar (guitar) scales. I really really like to just play around on the blues scale. I have even tried my hand at just kind of improvising a blues song. More of just a short riff then phrase of lyrics, riff, phrase, riff, phrase, wicked riff with killer virbrato at the end. You know, just really simple. But in my musical explorations, this question hit me. When does a random hodge podge of notes become music? I know they are all in the same key, so they aren't completely random, but I dunno if it is really music like Led Zeplin is music or like CCR is music or Beck is music. I mean they are so different, but all music. I just feel like I am playin a scale. I have tried putting down a little peice of poetry and then building some chords around it, but it is pretty easy to start sounding like Nickleback or Creed. Redundant and unimaginative.

So where does music start? When is my Bm D A E chord progression my own and not a spin off of Coldplay's Green Eyes. Maybe I shouldn't have written that. Later when I give up this engineering gig and am making millions of records as a guitar slingin rocka' (say this like Nigel from Spinal Tap) Coldplay will sue me for copywrite infringement. Probably not. I'll just say they were inspiration or something.
God Bless Ben Folds! Make him a believer.