Derived from ancient Middle Eastern and Egyptian sistrums, the early European triangle often featured metal rings on the bottom bar to create a continuous "buzzing" sound. In the 1700s, it joined the orchestra to provide "Turkish" color alongside the bass drum and cymbals. By the mid-19th century, the jingling rings were removed, resulting in the clean, open-ended steel rod we use today—valued for its pure, crystalline tone that can pierce through the loudest orchestral textures

The Overture Steel Triangles feature bright overtones with a clear attack.