Classify its characteristics of arts and crafts in the specific countries of East Asia.​

The most representative of all Chinese arts and crafts are Bronze Vessels, Folk Toys, Embroidery, Calligraphy, Music, Opera, Painting, Cloisonne, Jade, Kites, Lacquer, Paper Cuttings, Porcelain, Pottery, Seals and Silk.

Japanese art covers a wide range of art styles and media, including antique pottery, sculpture, ink and silk and paper calligraphy, ukiyo-e paintings and woodblock prints, ceramics, origami, and more recently manga, modern Japanese cartoons and comics along with a myriad of other types. It has a long history, from the beginning of human habitation in Japan, sometime in the 10th millennium BC, to the present-day country.

Traditional Korean arts are unique cultural treasures that have been handed down from master craftsmen to master craftsmen since ancient times. Inspired by the natural world, these beautiful traditional crafts are marked by their use of natural, organic forms and simple decorations. Korean folk painting, calligraphy, Korean mulberry paper and clay dolls are just a few exquisite examples of traditional Korean art.

i'm not sure i completely understand your question, but i will do my best.

i think the answer you are looking for is sequence. (see below)

a repeated melodic fragment would be best defined as repetition, while repeated chords (different or the same) could be a chord progression. however, you then mentioned the chord and melodic fragment beginning on higher or lower pitches, in that case, the answer could be best defined as a sequence. the definition of a sequence is as follows: "the restatement of a motif or longer melodic (or harmonic) passage at a higher or lower pitch in the same voice."

let me know if this !