The power of eleven

One of my recent poetry acquisition treasures is Measure for Measure:  An Anthology of Poetic Meters, edited by Annie Finch and Alexandra Oliver (Everyman's Lbrary, 2015).  From a DC poet and friend, Paul Hopper, a few weeks ago I received comments about one of the sections of this collection  -- a section containing stanzas in hendecasyllabics, that is, in 11-syllable lines  Hopper has sent a sample quatrain of hendecasyllabics that points to "Into Melody" by Lewis Turco.  A bit of mathematical terminology is found in the opening lines of Peter Kline's "Hendecasyllabics for Robert Frost" -- and I offer these samples below.

Hopper's quatrain:

Someone should build a large dodecahedron,
with a poem in hendecasyllabics
on each pentagonal face except the base.
I'd start with this poem by Lewis Turco. 

A wedding song -- shaped by mathematics

This posting includes a stanza from of "A Wedding on Earth" by Annie Finch.  In the poet's words: the poem has 11 stanzas with 11 lines for a total of 121 lines, this number symbolizing the two single members of a pair joining into a 2, which is the prevailing theme of the poem; and each stanza combining [averaging] the stanza of Spenser's epithalamion (18 lines)  with Sappho's stanza (4 lines).