실내악이 · 실내악을
chamber music
Example
작은 공연장에서 듣는 실내악은 특별한 매력이 있어요.
Chamber music heard in a small hall has a special charm.
Word parts
실 room+내 inside+악 music
Literally 'indoor music', a calque of 'chamber music'.
Good to know
Pronounced [실래악]: ㄴ after ㄹ turns into ㄹ (liquidization).