It is a song that once again shows the charm of IU's vocals, and has a mysterious and strange concept that a teenage girl goes on a time trip and meets a distant future.

In a composition that crosses minor and major codes, the arrangement that conveys the variety and fantasy of real sound using instruments rarely found in music such as harp and horn stands out, and you can see IU's diverse vocal expression.

Here, 'the loneliest whale in the world'.

so-called '52 Whale' Singing at a high frequency of 52 Hz, the whale can't talk to other ordinary whales that communicate at frequencies of 12-25 Hz.

Nevertheless, the 52 whale continues to sing. Alone, steady.

Born in a combination of 52 Whale and 'Alien', the song is as lonely and hard as a 52 Whale, but it melts the feelings of BTS, who has no choice but to continue singing.

In the early 2000s, the song was created with a high-pitched vocal sampling technique that allows users to feel the vibe of hip-hop, along with an old-school rhythm source, creating a lonely yet nostalgic feeling.

Under the trendy sound and the calm performance of the nylon guitar, the delicate expression of the vocal line is attractive.

Rap Monster's rapping, especially in the ending part, is a powerful force.

It is a song that contains the confused emotions of youth, and depicts an image that seems to wander in a dream that you want to believe is reality.

It has a more mature sensibility compared to the music BTS has performed so far, raising expectations for what kind of music it will play in the future.

It means "preventing the bad luck of the house," and it is a song that prevents bad luck and blesses you.

Gayageum Byeongchang: Jeon Hai-ok, Oh Ju-eun, Choi Ye-rim
Ajaeng: Seo Young-ho
Daegeum: Won Wan Chul
Ko Soo: Jung Joon Ho

Gyeongsang Province, late Kim So-hee song made by the singer features an enchanting melody, and the Japanese occupation of the menarijo bukkando lost wind-swept heart of people who moved to country representation.A folk song(Minyo).

Gayageum Byeongchang: Jeon Hai-ok, Oh Ju-eun, Choi Ye-rim
Ajaeng: Seo Young-ho
Daegeum: Won Wan Chul
Ko Soo: Jung Joon Ho

This is the part where a housewife who went to the land to get the dragon king's medicine with a funny eye at the Sugungga, Jajinmori rhythm, seduced the rabbit and ordered him to catch the rabbit.

The song refers to a musical style in which Sijo poem, one of the literary genres of the Joseon Dynasty, is added to the melody of five chapters.

It is called Jeongga along with the lyric and sijo, and is also considered one of Korea's top three vocal music songs along with Beompae and Pansori.

In the late Joseon Dynasty, it was a representative piece of music for the folk and folk, and it was also their living music.

Playing to the accompaniment of the gale, the tune is divided into clear, vigorous U-jo and sad-feeling surfactants, and divided into male and female chants.

Gagok is also known as the Eternal Ring Jigok, which is a vocal piece that is included in the regular price along with sijo and lyric that were popular in the upper class society of the Joseon Dynasty. The lyric of Sijo is sung in the form of Chapter 5 to the orchestral accompaniment of Piri, Jeotdae, Gayageum, Geomungo, and Haegeum. Its artistic value is excellent compared to that of Sijo and its lyrics. Traditional songs are played by 16-night or 10-night Janggu Jangdan accompaniment, and are based on 24 songs and are divided into male, female, and male and female songs according to the classification of people.

The song originated in the early Joseon Dynasty, and the current song was formed at the end of the Joseon Dynasty. As the mandaeyeop and Jungdaeyeop gradually declined during the late Joseon Dynasty, the sagdaeyeop became more prevalent, and from the end of the 17th century, the sagdaeyeop became a variant of 1, 2, and 3. By the 18th century, Jungger, Pyeonggeo, and Duger were derived from the Great Lakes of Isu, and by the 20th century, they grew into huge vocal music like today's songs.

In 1988, Han Ja-yi was introduced to Wolha Kim Deok-soon, the owner of an important intangible cultural asset, Yeo Chang-ga-gok, and learned about the arts. Since 1992, he has been studying Namchang Song from Kim Gyeong-bae, the owner of Namchang Song, and from So Dong-gyu, Kim Gyu-yeol, and Park Gi-ok, the master singers of Naepoje Sijo, he learned how to make poems and sing lyrics. He won the gold medal at the 1992 national men's and women's sijo sang competition and the grand prize of the Jeonju Daesaseup Nori Sijo in 1993.

Gasa, which is part of the country’s traditional vocal music, refers to a long narrative in verse. Based on relevant records, it is presumed that this form of verse started to be written after the reign of King Yeongjo (r. 1724-1776).

A total of 12 pieces have been handed down and survive today. They are Baekgusa(The Song of the Seagull), Jukjisa(The Song of the Bamboo Branch, Hwanggyesa(The Song of the Yellow Cock), Eobusa(The Song of the Fisherman), Chunmyeongok(Spring Indolence), Sangsa Byeolgok(Longing for the Departed One), Gilgunak(The Street Military music), Gwonjuga(The Drinking Song), Suyangsanga(The Song of Mt. Suyang), Cheosaga(The Song of the Hermit), Yangyangga(The Song of Yangyang Town), and Maehwa Taryeong(The Song of the Plum Blossom).

It is not known who composed these songs or wrote their lyrics, but it is thought that the tradition of Gasa was established toward the end of the Korean Empire (1897 – 1910). The narratives of Gasa are very long and are not regularly styled, and so it is not clear how singers are supposed to arrange their diverse features and sounds. Melodies differ slightly from narrative to narrative. Modulations and repetitions appear characteristically.

As for their rhythm, Baekgusa and Jukjisa have dodeuri rhythm (sextuple time). Sangsa Byeolgok, Cheosaga, and Yangyangga have quintuple time. Gwonjuga has no fixed rhythm.

Basically, Gasa is sung without instrumental accompaniment, but sometimes it is sung to the accompaniment of piri (flute), haegeum (two-stringed fiddle), daegeum (bamboo flute) or janggo (hourglass-shaped drums).

As a free-style song, Gasa is good at expressing people’s sentiment or natural beauty. It is a song sung by professionals, and is the country’s indigenous music featuring peacefulness and locality.