 Yet even in this essay Grimm showed that "Minnesang" and "Meistergesang" were really one form of poetry, of which they merely represented different stages of development, and also announced his important discovery of the invariable division of the "Lied" into three strophic parts.Grimm's text-editions were mostly prepared in conjunction with his brother.In 1812 they published the two ancient fragments of the "Hildebrandslied" and the "Weißenbrunner Gebet", Jacob having discovered what till then had never been suspected — namely the alliteration in these poems.