Music

The known world, though sharing similar classifications of musical instruments, utilizes many instruments which are considered niche and obscure on Earth.

Flame Horn
Flame horns are a type of ceremonial brass instrument played by the Ashsparge Quarriers, though variants exist in territories which used to belong to the Empire of Ash. A flame horn consists of a trombone-like horn attached to a Rubens tube. The Rubens tube demonstrates the acoustic waves of the notes played through a series of fires at the top of the tube.

The standing wave of the music will create points with oscillating (higher and lower) pressure and points with constant pressure (pressure nodes) along the tube. Where there is oscillating pressure due to the sound waves, less gas will escape from the perforations in the tube, and the flames will be lower at those points. At the pressure nodes, the flames are higher.

Singing Saw
Singing saws, also known as musical saws, are a prestige instrument throughout most of North Adustia. Singing saws are flexible handsaws which are played by placing the handle between the knees and bending the end while bowing along the flat edge. This creates an ethereal sound, comparable only to the theremins of the Great Generator.