Questions

With one fork. Strike it with the mallet, hold it by the stem and listen until the ring fades. The guide that comes with every set takes you through your first week, one small step a day.

Anything that touches a prong stops the sound: a finger, a sleeve, the edge of the bag. Hold the fork by its stem and keep the prongs free.

Yes. Strike the 256, then the 384, and hold them side by side, close to your ear but not touching. The two notes make a perfect fifth, the jump from C to G.

The mallet that comes with every set, or the puck in The Gift Set. Strike only on those: a table, a stone or a metal edge can chip a fork and change its pitch.

No. The guide comes with every set, and we don't sell subscriptions.

The Four is two forks to feel and two to hear, with a mallet and a bag. The Gift Set is the same four forks in a roll-up case. It adds a puck to strike them on, a purple gift box and a note card. One to keep, one to give is two Gift Sets in one order. Not sure? The quiz takes six questions.

Weighted forks have round weights near the tips of the prongs. Hold one by the stem and you feel it hum in your hand. Unweighted forks are bare. Hold one close to your ear, without touching it, and you hear a clear ring.

Each number is a fork's pitch in hertz (Hz). The higher the number, the higher the note: 128 Hz is a low C and 384 Hz is a G. Each product page lists every fork's note.

Our forks follow scientific pitch, where C is 256 Hz. Most pianos and tuner apps use concert pitch, where middle C is about 261.6 Hz. So a tuner reads our 256 as a little low. The gap is a bit more than a third of the step between two piano keys. That's expected, and the same goes for our 128.

It's a firm puck to strike the forks on. It comes in The Gift Set. With The Four, use the mallet.

Strike them only on the puck or with the mallet: a table, a stone or a metal edge can chip a fork and change its pitch. Keep them in their bag or case so they don't knock together, and leave the weights where they are, because their position sets the pitch.

A drop, a hard knock or a moved weight can change a fork's pitch. Keep your forks in their bag or case, strike them only on the puck or with the mallet, and leave the weights where they are.

No. Our forks are sound instruments, made for listening and for quiet rituals at home. They aren't for hearing tests or any medical use. For a question about your health, please ask your doctor.

Strike the forks only with the mallet or on the puck. A table, stone or metal edge can chip a fork and change its pitch. Strike away from your face. To listen, hold the fork about two inches from your ear, without touching it, and keep the prongs away from your eyes. Leave the weights where they are: their position sets the pitch. Keep the forks in their bag or case. This is not a toy: keep the key and the small parts away from young children.

Yes. Put their address in at checkout and we'll ship it to them.