クリスマスには有名な聖歌が流れる。
Famous sacred songs are played at Christmas.
聖歌 (a hymn or sacred song) is pronounced identically to 聖火 (a sacred/Olympic flame) but refers to music, not fire.
Compound of 聖 (holy, sacred) and 歌 (song). The term was likely coined in the Meiji period to translate Western concepts of hymns and sacred music.