Luc bat means six-eight, and is a syllabic form alternating
lines of six syllables and eight syllables. It uses a kind of falling/climbing rhyme where a rhyme sound first shows up as the eigth syllable of an eight
syllable line, then at the end of the next six-syllable line, then as the sixth syllable of the next eight-syllable line, which starts the cycle again with its
eighth-syllable rhyme. The form interlocks and can go on for any number of couplets, finally interlocking back to the beginning.