The Song - a second try at seeing the structure

The Song will not yield easily to a structural analysis though it is 'obviously' a tightly structured piece of writing. Two more images are available for view. I combined the English and Hebrew into common nodes so as to reduce the complexity and I have done a little colour coding of keywords - but not many of them. Each verse has so many resonances that it is impossible to use colour effectively at this level. See if you can help: Full size;
Pint size; text in html format - suitable for correcting my errors