Attending the opening ceremony were the Standing Vice Chairman of People's Committee of Lai Thanh Son; representatives of some agencies, units, departments, provincial departments and leaders of Luc Ngan district.

At the Theater of Sloong and the Spring market in the highlands singing folk songs of Luc Ngan district in the year of 2019, there were 27 folk clubs with a great number of people of Luc Ngan district and the tourists are far away.

Through the performances of artisans and singers, the cultural identity of the Kinh, Nung, Tay and San Chi ethnic groups has been highlighted ... Highlights are the Sloong hao of the Nung people. but, love, passion for people.

Sloong hao is a spiritual product, a precious treasure handed down through generations and has become an indispensable feature in the daily life and labor of Nung ethnic people.

In Nung language, Sloong hao means two of us and one of us. This is a long-standing love song of the Nung ethnic group and is considered as a northern termite bridge that has a lot of love and love for couples to come together, to develop love and couple into husband and wife..

Unlike many other ethnic minorities, the Sloong hao song of the Nung ethnic group is especially in no accompaniment. However, it is not that it is less attractive, passionate and sweeter. Sloong has the main melodies of love songs, weddings and weekdays. Nung boys and girls groups often take the occasion to go to the market, when the full moon or the New Year comes to spring to sing together. Singing can last from early morning to late afternoon, they sing along passionately on the way back to the village. At this time, they will take up the melody with so many confidences, deep hearts from the heart and many couples should have husband and wife after the singing.

In addition to the performances in the form of stage theater, the Sing Theater of Sloong is also shown by fellow citizens at the Spring market or Tan Son love market. It has become a long-standing cultural tradition, every year, until January 12, the Spring Fair of Tan Son highland of Luc Ngan district is a cultural destination, a place of love and romance through the slaves of the dong. Nung ethnic people live in Luc Ngan district and some neighboring provinces.

2019 is the ninth year of Luc Ngan district organizing the Sloong hao singing festival and the Spring market in Tan Son highland. Through this activity, to preserve and promote the cultural identities of ethnic groups and at the same time strengthen the solidarity and cultural exchange between people of ethnic groups living in the area.

There are 08 ethnic groups living together in Luc Ngan district; in which, Tan Son commune has 03 main ethnic groups: Kinh, Nung and Tay.