One single resonant tone. Tuned to the frequency of Jupiter using the calculations of Hans Cousto. The Meinl Planetary Tuned Energy Chime is tuned to precisely deliver a F7# note at a frequency of 293728 Hz. According to Hans Cousto this is the frequency which matches the celestial body known as Jupiter. The Meinl Energy Chime includes a wooden beater and is designed for therapeutic use.