I love this form, though I do not understand it, *goes to Google*
Here we go:
Trijan Refrain
The Trijan Refrain, created by Jan Turner, consists of three 9-line stanzas, for a total of 27 lines. Line 1 is the same in all three stanzas, although a variation of the form is not to repeat the same line at the beginning of each stanza. In other words, the beginning line of each stanza can be different. The first four syllables of line 5 in each stanza are repeated as the double-refrain for lines 7 and 8. The Trijan Refrain is a rhyming poem with a set meter and rhyme scheme as follows:
Rhyme scheme: a/b/a/b/c/c/d,d refrain of first 4 words of line five /c
Meter: 8/6/8/6/8/8/4, 4 refrain/8
source: shadowpoetry.com
^
After reading this I can see how you have created an excellent example of this form.
I especially like the repeated lines, syphony, rapsody and sonata.