If you like that one, or don't like it, you do thumbs-up and thumbs-down. Over time it tailors the songs so that it completely stops playing bad songs.
음악이 맘에 안 드신다면 '비추천'을 선택하세요. 그러면 프로그램이 알아서 '비추천 곡들'을 중단시키지요.