When a player buzzes their lips into a mouthpiece, brass instruments—metal wind instruments—make sound. Usually constructed of brass, they alter pitch using slides or valves. They are frequently used in bands, orchestras, and other musical genres and are well-known for their bright and forceful tone.

The traditional brass instruments of the Mon people have a strong cultural and religious significance. Usually, talented craftspeople use metals like copper alloys, bronze, or brass to handcraft these instruments. Casting, shaping, and occasionally engraving or decorating with symbolic motifs are all steps in the manufacturing process.

Festivals, temple rituals, and social events are the main occasions when brass instruments are employed in Mon music. Their powerful, resonant voices are used to lead processions, announce significant events, or provide accompaniment for theatrical productions and traditional dances.

Brass instruments frequently accompany drums, gongs, and other percussion or stringed instruments in Mon music because of its communal character, which results in a rich, multi-layered soundscape.