Bottle Band

DCS Code: 3C20.25 Last Updated: March 27, 2026
Log in to reserve this demo

Purpose

Demonstrates how resonant frequency varies with bottle shape, size, and air column length. Adding water shortens the air column and raises the pitch. One bottle has no base, allowing comparison of open-end vs. closed-end resonance.

Collection of about ten bottles of various sizes — a large plastic Sprite bottle, green glass bottles, a dark champagne-style bottle, and several clear glass and plastic bottles arranged on a gray surface
Figure 1: Assorted bottles of different volumes and neck geometries provide a range of resonant frequencies. The variety allows comparison of how bottle shape affects fundamental frequency and tone quality.