Final Answer:
1. The instrument played on both the boss/knob and the face of the gong is D. Pinpeat.
2. A pair of four narrow-rimmed hanging gongs is called C. Gandingan.
3. The timekeeper of the ensemble is known as C. Irama.
4. A heptatonic (7) tone scale with a semi-tone is A. Pelog.
5. An ensemble in Thailand usually consisting of nine or ten instruments is A. Piphat.
6. One of the two essential instruments is C. Agung.
Step-by-step explanation:
1. D. Pinpeat (Instrument played on both the boss/knob and the face of the gong):
The Pinpeat ensemble is a traditional Cambodian musical ensemble that often accompanies ceremonies. It includes various instruments, and among them, the gong plays a crucial role. The gong is struck on both the boss (center) and the face to produce distinct sounds, contributing to the rich texture of Pinpeat music.
2. C. Gandingan (Pair of four narrow-rimmed hanging gongs):
Gandingan is a set of four narrow-rimmed hanging gongs from the Philippines. Played in pairs, these gongs produce melodious and resonant tones. They are a key component of the Kulintang ensemble, contributing to the ensemble's harmonic structure.
3. C. Irama (Timekeeper of the ensemble):
In traditional Southeast Asian music, including gamelan orchestras, Irama refers to the rhythm or timekeeping element. It is crucial in maintaining the tempo and coordinating the ensemble. The Irama is often played on instruments like the Kendang (drum) in the gamelan ensemble.
4. A. Pelog (Heptatonic scale with a semi-tone):
Pelog is one of the two main tuning systems in Javanese gamelan music. It is a heptatonic scale, meaning it has seven notes per octave, and it includes intervals, including a semi-tone. Pelog contributes to the distinctive and evocative soundscapes of Javanese traditional music.
5. A. Piphat (Thai ensemble with nine or ten instruments):
Piphat is a classical Thai ensemble that typically consists of various wind, percussion, and string instruments. The ensemble's composition can vary, but it often includes around nine or ten instruments, creating a balanced and harmonious sound.
6. C. Agung (One of two essential instruments):
Agung is one of the essential instruments in the Kulintang ensemble of the Philippines. It is a set of large hanging gongs, and along with the Gandingan, forms the core of the Kulintang ensemble. The Agung produces deep, resonant tones and contributes to the ensemble's rhythmic and melodic structure.
These answers highlight the cultural richness and diversity of traditional music in Southeast Asia, each instrument playing a unique role in creating the intricate and mesmerizing sounds of the region.