Definition & Meaning of "tubular bells"

What is a "tubular bells"?

Tubular bells are a percussion instrument consisting of a set of metal tubes, each of which is tuned to a specific pitch. The tubes are hung vertically and struck with mallets to produce a clear, resonant tone. Each tube produces a distinct, bell-like sound, and the instrument is often used to add a bright, shimmering quality to music. Tubular bells are commonly found in orchestras, concert bands, and various other musical settings. Their clear, melodious tones make them suitable for both dramatic effects and melodic lines.