If you consider that the flute is somehow normally three dimensional (two dimensions in sound and one in time?) then the multiple layers, tracking each other in time could be argued to be in four dimensions. 

I don’t know that this is anything like what we’ll wind up using - but once I got started on this, I couldn’t stop.   The display above shows the volume tracking on each of the tracks.  The last section - left that alone.

This is the two halves of the song, minus the musical interlude.   Still need to rework that to fit with this rhythm.   Never an end to musical tasks.   Let’s hope!

(I’ve since deleted the two earlier versions of this, “AltoNateFlutes” and “Get on Board the Flute Bus”.)