SunCatchers are described by the artists as giant musical instruments that create shimmering, ringing harmonics. SunCatchers is a series of five outdoor sculptural objects designed to reflect sunlight and create harmonic musical sounds as they spin in the wind. Mounted on poles, each object includes a propeller, a triangular vane of holographic glass, and a mallet and tone bar. As the wind blows, the rotation of the propeller activates the mallet which strikes the tone bar causing it to play a note. At the same time, the triangular glass prism vane shifts in the breeze, changing colors. In the event the breezes are still, a turning ring allows visitors to turn the vanes themselves.
According to the artists, 'The experience is like moving through a sound field. Each station spins out one note of a musical scale, generating a melodic ambiance as a counterpoint to urban drone." Each SunCatcher station is tuned to a pentatonic scale, and creates harmonic overtones in all directions.