tonal patterns

同根派生

Judging by the tonal patterns in classical Chinese prosody, this mispronunciation seems to come in quite appropriately.
北方人念字，总老象是层字，平平仄仄起来，这念错的岐韵，倒来得正好。
Ci at that time had to be in line with strict rules of both tonal patterns of the music and rhymes of the poetry.
宋以前词人填词，要求合乎音乐曲调，又要求合乎严格的格律。
Both Li Bai and Du Fu are great masters of poetry with strict tonal patterns and rhyme schemes.
李白、杜甫都是唐代格律诗的大家。
Classical Chinese poetries, which strive to have harmonious tonal patterns, cadences/ intonations and neat antithesis, has endrhyme, double-tone, vowel-rhyme etc.
中国的诗词力求平仄协调、扬顿挫、仗工整，有尾韵、声、韵等。
And Wudai Dynasty is a period when the literators grope their way all-sided for the tonal patterns and rhyme schemes of ci poetry and also for the type of ci poetry.
而五代则是一个词调与词体在文人手中展开全面探索的时期。