The nipple gong is a unique and versatile percussion instrument known for its central raised boss or nipple, which sets it apart from other traditional gongs. The boss is often made of different metals, contributing to the gong's varying degrees of quality and resonance. Nipple gongs produce a distinct sound characterized by less shimmer compared to other gongs, and they offer two different tones depending on whether they are struck on the boss or next to it. These gongs are available in various sizes, ranging from 6 to 20 inches (15 to 51 cm) or larger, and some are precisely tuned to specific pitches.

History
Nipple gongs have a rich history and are commonly found in different cultural contexts. They are used in Chinese temples for worship and have significance in Buddhist temples throughout Southeast Asia. In traditional Philippine music, especially in kulintang ensembles, nipple gongs are a primary instrument and play a crucial role in producing the traditional melodic and rhythmic patterns. Additionally, in Indonesian gamelan ensembles, gongs come in various sizes and serve different functions, with nipple gongs being an integral part of the ensemble.

Uses:
The nipple gong is an essential instrument in various religious and cultural practices. In Chinese and Southeast Asian temples, it is used for worship and ceremonial purposes, adding a distinctive sound to sacred rituals. In Philippine kulintang music, sets of smaller, tuned nipple gongs are utilized to play intricate and melodious melodies, contributing to the ensemble's rich sound. Similarly, in Indonesian gamelan ensembles, nipple gongs serve different roles depending on their size, pitch, and function. The larger gong ageng, with its deep pitch, is played less frequently and creates a foundation for the ensemble, while smaller gongs like the gong suwukan and kempul add higher tones and more frequent accents.

How to Play:
Playing the nipple gong requires precision and technique to achieve the desired tones and sounds. Percussionists typically strike the gong with mallets, choosing between striking the central boss or the area next to it to produce different tones. Striking the boss creates a deeper, resonant sound, while striking the gong's surface next to the boss yields a brighter and more vibrant tone. In ensembles, players coordinate their strikes to create intricate rhythms and melodies. To play a melody, sets of smaller, tuned nipple gongs are used, with each gong producing a specific pitch. By striking the nipple gongs in sequence, performers can create beautiful and captivating musical phrases that define the character of the traditional music.