There are 2 basic components to a wind harp, strings and something to act as a sound box or resonator. Think of a guitar or other stringed instrument, the strings are set in motion by fingers or a bow. To make the strings move on a wind harp we use the wind! As the breeze passes around a string it creates a slight vacuum, causing the string to move. The stronger the breeze the more movement. Sympathetic resonance also comes into play as the strings are close enough together to work on each other. This accounts for the overtones and thus the haunting sounds. We use a sound cone to help amplify the sound from the strings. Our sound cones are stainless steel, very thin 20 ga which works very well, and are similar to a dobro used on acoustic guitars. When conditions are right, the whole harp frame vibrates, even the board that it is attached to.