, ▁as ▁a ▁child . ▁He ▁kept ▁post pon ing ▁playing ▁it ▁himself ▁until ▁his ▁interest ▁was ▁rev ived ▁in ▁May ▁ 2 0 1 0 ▁when ▁he ▁performed ▁a ▁du et ▁on ▁the ▁S BS ▁program ▁Stock ing ▁with ▁electronic ▁viol in ist ▁Eug ene ▁Park , ▁who ▁also ▁plays ▁the ▁V ival di ▁piece . ▁Then ▁on ▁October ▁ 2 4 , ▁ 2 0 1 0 , ▁he ▁made ▁his ▁classical ▁debut ▁at ▁Se j ong ▁Center ▁for ▁the ▁Perform ing ▁Arts ▁when ▁he ▁performed ▁" W inter " ▁of ▁" F our ▁Se asons " ▁with ▁viol in ▁and ▁c ello . ▁He ▁described ▁prepar ing ▁for ▁the ▁album , ▁pract icing ▁twelve ▁hours ▁a ▁day , ▁as ▁passion ate ▁as ▁a ▁middle ▁school er ▁learning ▁guitar . ▁He ▁said ▁he ▁wanted ▁to ▁accommod ate ▁the ▁differences ▁in ▁the ▁sounds ▁of ▁the ▁viol in , ▁which ▁has ▁no ▁breaks , ▁compared ▁to ▁the ▁guitar . ▁On ▁the ▁album ▁he ▁used ▁his ▁Su hr ▁" K im ▁Se - hw ang ▁Modern ▁Custom " ▁guitar , ▁provided ▁for ▁him ▁by ▁the ▁company , ▁to ▁his ▁specific ations , ▁after ▁he ▁joined ▁them ▁as ▁a ▁representative ▁in ▁ 2 0 1 0 . ▁ ▁A ▁year ▁later , ▁in ▁June ▁ 2 0 1 2 , ▁he ▁performed ▁Luis ▁Bac al ov ' s ▁" Con cer to ▁Gros so " ▁for ▁I ▁Mus ici ' s ▁ 6 0 th ▁An ni versary ▁during ▁their ▁South ▁Korean ▁tour . ▁