In our angelic chorus

A new perimathematical constraint for poetry:

1. Select your favorite sequence, {a_i}. (An infinite one will ensure that you'll never run out of defining digits.)

2. Select a permutation p of the set of vowels.

3. In the poem you construct, the vowels must appear in the order in which they appear in the permutation from Step 2 (repeating the permutation anew once its ends is reached), and the ith block of consecutive occurrences of the same vowel must contain a_i occurrences of that vowel.

As default values, one might take the obvious choices {a_i} = {1,1,1,1,...} and p = (a,e,i,o,u).

As yet I've only managed to construct a page or two of semipoetic fragments, like "up sharp gelid mounts, arches high" and "dour pages, iron, unanswering."

Perhaps one might try a random permutation, and a defining sequence such as {3,1,4,1,5,9,2,...} or {2,7,1,8,2,8,1,8,2,...}?

More to come!