One single resonant tone. Tuned to the frequency of Chiron using the calculations of Hans Cousto. The Meinl Planetary Tuned Energy Chime is tuned to precisely deliver an F7 note at a frequency of 276576 Hz. According to Hans Cousto this is the frequency which matches the celestial body known as Chiron. The Meinl Energy Chime includes a wooden beater and is designed for therapeutic use.