V.A. - 유성기로 듣던 불멸의 명가수 (23CD Box Set) CD8 True favourites; 8. 올팡갈팡 / olpang-galpang, 12. 청춘(靑春) 삘딩 / Youth springing ("good morning"-song) To my amazement I found out that in Korea from the 30s/40s, it wasn’t only the preceding style of Trot that had been recorded. The recordings of Kim Hae-Song show a lot more cabaret, influences in old time jazz, and influences from American broadway film music, which shows another interesting and expressive aspect of music from those days.