The time has come, dear imaginary reader, for me to reveal to you what is going on in sub-section 1.2.3. This first track is all about the physical universe, and this second section is about the scope of the universe. 1.2.1 was space, 1.2.2 was time, and now 1.2.3 is about parallel dimensions, alternative universes, the 5th dimension, whatever you want to call it.
Now although I personally don't subscribe to the theory that at any quantum collapse event the universe splits and goes in two different directions, the concept that the universe splits at particular points is a fairly neat way of explaining this concept of extra dimensions, and so this sub-section displays what Terry Pratchett calls the "bifurcating trousers of time".
And this is how I have done it. The rythmn, (clock and guitar chord sequence) from 1.2.2 carrries on, bass and shaker is added to give a slightly different feel, and the acoustic guitar plays a tune which fits the chords. This keeps repeating (and this time I have deliberately looped the same recording so it stays exactly the same.) The idea of the split is that two alternatives run in parallel, but over time they become more and more different, so first of all I intruduce a second acoustic guitar playing exactly the same, then they separate in the stereo image, then the "new" one plays a slight variation on the same tune, then it changes for being player with a plectrum, giving a harder sound, then fades into an electric guitar instead of acoustic, then it plays a harmony with the first (constant) one, and then starts to "noodle" over the chords, different to the tune. Eventually everything fades out and leaves the electric guitar alone, which stops short of the 3 minutes end - the electric guitar is going to stay the same and start up relevant playing for the next sub-section.
My only reservation on this is wondering if the repeated tune is going to get a bit boring, time will tell as I let it "settle in".
One thing I am finding quite interesting is that having done two sub-sections as one recording project file, over this 6 minutes I only have one midi track, all the others are "real" instruments, guitars, bass, percussion, triangles and all - quite a few of them.