It's not a real word, but it should be the same as positronium and is a tangled electron and positron pair.
Music then; I added pairs of notes, essentially playing two leads at the same time, which might require some more fine tuning, but at least there's a much greater chance (about 400%?) of 2 notes harmonizing (4 possible combinations of 2 single notes (e.g. CD-FG), 2 possible combinations of 1 single and 1 double (e.g. CD-EG), and 1 possibility of complete harmony (e.g. CE-GC'); versus just one possibility of harmony (e.g. A-E), but there's only a 50% chance a note will be a double). I could fiddle around with it a bit to make the double note dependent on the generated single that spawns it.
Basically I'm tangling notes here.
The ending still hasn't been changed, I'll deal with that later.
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