The tone of Pluto: 140.3 Hz
This tuning fork belongs to the planetary series and sounds at 140.3 Hz, the frequency assigned to Pluto. What does that mean in practice? When you strike the fork, you hear a deep, even, long-sustained humming tone - similar to a soft drone - which you can also feel as a gentle vibration through the stem. Planetary tuning forks are used in sound therapy for group and individual relaxation sessions; tradition links the tone of Pluto to the theme of belonging and community.
Nickel-free steel, maple handle
The fork is made of black oxide, nickel-free steel - good news for sensitive skin. The maple wood handle offers a comfortable grip and lets the prongs vibrate freely. It is 21 cm long and weighs only 74 grams, so it fits easily into a bag or a therapist's kit.
How to play it
Hold the fork by its handle and strike one prong against a soft surface, such as the pad of your palm or a felt pad. Then bring it to your ear to listen, or touch the end of the stem to the body to feel the vibration. Avoid striking hard surfaces, as this may damage the fork.
Who is it for?
For sound therapists expanding their planetary fork collection, and for anyone who would like a few minutes of quiet at home. If you are new to tuning forks, this piece is a good entry point: it is simple to use, and with the matching wooden stands it can grow into a beautiful set.