From the19th century, western music began to be introduced into Turkey, which had a great influence on the traditional music in Turkey, but musicians still tried to maintain their traditional music forms and national tones. Because of the use of harmony, we should change the melody to 12 average law; Among many modes, only a few commonly used ones are related to the size mode. Modern pop music is widely spread through radio and cafes, especially among young people, showing the coexistence of western music and traditional Turkish music.