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Discover relaxing sounds

INNER SOUND tuning forks laid out on a table with rubber stopper
woman waving with headphones

Experience the Power of Sound Therapy

INNER SOUND Tuning Forks

  •  Our tuning forks are designed for sound therapy that are for humans and animals used in pairs at the head. US manufactured from high-grade aluminum alloy, they are FDA certified as Type 1 medical devices, available in large & small sets.

  •   Our Tuning Forks create a balanced movement of expansion and contraction throughout
    the nervous system and field.
    This movement produces deep relaxation enabling the body to regenerate and the energy
    system to balance and align itself.

  •  The Basic & Advanced Training provides essential knowledge to maximize the use of the tuning forks in relaxation, complementary therapy, & personal use focus.

  •  Frequencies and fork numbers are based on Jack Wilken's research, with course content developed by Arden Wilken, co-founders of INNER SOUND.

INNER SOUND tuning fork logo showing infinity symbol on its side with 2 forks mounted on it

Short demo of INNER SOUND Tuning Fork Session with Set of 13 showing practitioner holding 2 tuning forks, activating them and bringing the pair up to the ears and then away.

Client Feedback

"I'm always tense, and have trouble relaxing even when I'm in a sound therapy session. As soon as the forks came to my ears, I just zonked out. Incredible! My back pain is better too."

INNER SOUND Tuning Fork
Training

Years ago, one student couldn't buy tuning forks after training, so she practiced with 13 dinner forks instead. Another student's ranch family teased her about using "pitch forks" to relax them. They loved it!

1 stainless steel dinner fork
4 pronged pitch fork

Female software engineer in meeting by w

BASIC TRAINING

  • Use and primary application of our forks includes relaxing areas of the body and energy system correlation to pairs

  • Pairs are used to support body healing after injury, surgery, athletics, emotional trauma, workout or stress 

ADVANCED TRAINING

  • Deepens the Basic use for more specific applications, including focus on distinct symptoms and themes 

  • Fork pair protocols for anxiety, self-esteem, dysfunctional habits and behaviors, and detailed parts of the body 

BOTH TRAININGS

  • No purchase of tuning forks is required to attend the in-person course

  • To participate in the virtual class on Zoom, a minimum of Pair 5 must purchased

  • All instructors have over 300 hours of training

SUMMARY

  • Easy to learn

  • Complements any therapy/technique

  • For both professional & personal use

  • Rapid & repeatable relaxation effect

tuning forks not a substitute for a doctor

INNER SOUND does not provide medical advice, diagnosis or recommend treatment. 

  • Available Online

    Nov 1-2 Basic, Nov 8-9 Advanced 4 hours each day via Zoom/Instructor: Arden Wilken

    Starts Nov 1

    310 US dollars

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Student/Practitioner Feedback

"I'm a massage therapist. I find my clients relax more quickly and allow me to go deeper if I use the tuning forks before a massage. I don't have to work so hard."

Purchase Tuning Forks

Prices are + shipping 

(We ship anywhere in the US, including Alaska & Hawaii, and overseas)

Sets come with a pouch, wooden hammer and rubber activator as shown

  • Where & how do we ship?
    We ship to most countries. Within the continental US, we ship USPS Ground Advantage. To Alaska & Hawaii, we ship whatever is the cheapest, often Fedex. To the rest of the world we ship Fedex International Connect Plus, unless we find a cheaper method.
  • Do you have a storefront?
    No, we are web-based as we still travel for our sound therapy work. We are happy to communicate with you in a variety of ways: email, phone, text (Whatsapp), regular mail or Zoom video call. Email: arden@innersoundonline.com Phone: 1 206 618 3985 (We answer directly when we can. Leave a message otherwise) Our mailing address: INNER SOUND 7001 Seaview Ave NW, Ste 160-519 Seattle WA 98117
  • What 2 Therapeutic Music Titles are discounted 15 % each month?
    2025 May - Aromatherapy & Inner Focus June - Inner Harmony & Dreamtime July - New Heart & Reiki August - Deep Touch & Nature Serenade Sept - Music for Healing & Healing Music for Animals and Their People, Vol I Oct - Voyage to Freedom & Magical Garden Nov - Intuition & Just Celtic Dec - Journey Through the Chakras & Cosmic Alignment 2026 Jan- Healing Touch for Animals and their People Vol II & Just Piano Feb - Repose & Just Yoga Mar - The Brain Tape & Inner Sun April - Radiant Body & Music for Children May - Healing Music for Animals and their People Vol III & Sound Touch Jun - Start list over with Aromatherapy & Inner Focus

Care & Maintenance of Tuning Forks

•  Store in a dry location without touching (in pouch) / avoid dropping

•  Activate on rubber, or with wooden hammer for group work, not on body

 

 

•  Use at room temperature (68 degrees F/20 degrees C ) /

tuning forks should feel slightly cool to the touch when you use them

•  Use 220 grit sandpaper for any discoloration (oxidation) spots They do not affect the effect of the tuning forks, being cosmetic discoloration only

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Tuning Forks will last a lifetime if well-maintained

man with a hammer in right hand hitting his right temple
the 2 balls at end of a weighted showing corrosion/oxidation
don't hit tuning forks on your body

How to apply
INNER SOUND Tuning forks 

Image by Fineas Anton

Studies

From Practitioner Submissions
 

Since 2002 in an on-going study, INNER SOUND tuning forks use has shown a significant statistical difference in client-assessed pain and stress levels before and after a session. The assessments were in the positive direction, less pain and stress after the session.

Brain Tracings

This file shows a deeper level of Alpha brainwaves being created during a 15 minute Set of 13 tuning fork session vs 15 minutes of sitting with eyes closed.

Image by Dan Dimmock

More Tuning Fork Practitioner Feedback 

"I had the opportunity to use Pair 5, 7,  9, 11, 12, 9 & 5 (Set of 13) for a group of rescue rabbits that have been ill and stressed due to a recent loss of another rabbit. It was amazing. They all came out of their boxes and laid down & stretched out. The one I had worked on before the group session, the most ill, was in the middle pen, & every time I walked back and forth he would stand up like a dog begging, to try and get closer to the sound. It was awesome!"

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