17. Which of the two tuning systems used in Indonesian gamelan adopts the heptatonic tone?
A. Kyey
B. Kyo
C. Pelog
D. Slendro
18. Which song does not belong to Southeast Asia?
A. Arirang
B. Burung Kakak Tua
C. Chan Mali Chan
D. Rasa Sayang

19. Which statement is true about Singapore's musical ensemble?
A. Singapore has few musical ensemble,
B. Singapore has many musical ensemble.
C. Singapore has no musical ensemble.
D. Singapore has its own musical ensemble,

20. Which music in Southeast Asia is largely composed of percussion instruments?
A. Chinese Music
B. Indonesian Music
C. Malaysian Music
D. Vietnamese Traditional Music​