Spending his childhood in the countryside, he grew to love the sounds of "Nongak", a traditional Korean music form associated with farm life.

Jang Sa Ik spent over 25 years doing odd jobs in various towns across Korea, but he found himself longing for the sounds of his childhood.

Shortly after choosing music as his full-time vocation, Jang released his first album, entitled Hareulganeungil ("Passage to Heaven"), featuring pianist Im Dong-Chang.

While the English-speaking could not always understand his words, Jang Sa Ik conveyed a multitude of emotions through his music, and the audience response was strong.

At the Closing Ceremony of the 2018 Winter Olympics, he performed the Korean national anthem with a choir of 23 elementary school students.