I hope that the implicit relationship between "Organic Form" and my intrusions on the unstructured fragment by the very early Greek poet Simonides wasn't too obscure. If so, I apologize.
Just now, I'm wading into Dirk Obbink's volume on '
Philodemus and Poetry', which has diverse essays by authors staring at the remains of burnt scrolls in Greek from Piso's Herculaneum library, especially those of Philodemus. Philodemus was a great formal poet of short
works who settled in Italy and was extremely likely to have been known by Vergil (Horace has fun with some of his lines). He was also a considerable Epicurean philosopher and theorist of literature.
It appear that Philodemus did not believe it was possible to divorce form from content. The texts are often in perilous shape and full of holes made by Vesuvius etc., but if I find anything that seems worth while and relevant, I'll tack it on here or somewhere.