Henry asked for some input on the seam between books 4 and 5 here (but I did respond a bit too quickly - writing is dangerous. I shortchanged the complexity of the doxologies. Here is my penance.)
I had fun rereading these psalms - which of course I encourage all to do .
Apart from seeing the odd relationship between Job and Psalms, I have been idling as you can tell. I have some ideas but am percolating them offline between snatches of Job which itself will be slow going.