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Prop Technique5 minutes

Putting on Castanets: Adjusting the Cords on Your Thumb

By Bernhard De LucaUpdated

In short
  • The higher-pitched castanet usually goes on the right, the lower-pitched one on the left, regardless of which hand you write with.
  • The two cord loops sit side by side above the thumb joint, on the side toward the tip of the thumb.
  • The cords hold the castanets securely without causing pressure, tingling, or a change in skin color on the thumb.
  • The shells should close with little finger pressure and separate again when you release them.

A poorly positioned cord makes you constantly readjust your grip or brace against it with your thumb. Even before the first sound, the fastening determines whether your fingers can reach the shells comfortably.

What you need to get started

  • A pair of hand castanets with cords threaded through them
  • Intact cords with adjustable fastenings
  • Dry hands with no rings on your thumbs
  • A place to set down the other castanet

The cord holds, the fingers move the shells

This guide applies to hand castanets with thumb loops, as used in Spanish dance classes. Castanets with handles and other attachment methods work differently. With thumb loops, the threaded cord forms two loops. Both support the instrument together; tightening a single loop does not replace the second one.

The loops sit on the distal phalanx of the thumb: just above the movable joint toward the nail, not at the base of the thumb. The cord should not lie across the joint crease or slip up to the nail. The shell attachments face the thumb, and their hollow insides face each other. This lets your fingers reach the outer shell without having to grip the whole instrument tightly.

You need both a secure fit and freedom of movement. A tighter cord cannot make up for a poor fit. This is different from props you actively grip, such as a Mantón with accessible grip points. Castanets are also not essential for every Flamenco exercise: you can practise a Marcaje for Flamenco Tangos without them. This guide is only about putting them on, not about finger strokes or musical sequences.

Place the instruments separately so that after a break, you can recognize your hand assignments without comparing the sounds again.
Place the instruments separately so that after a break, you can recognize your hand assignments without comparing the sounds again.

Find the Right Seat in Seven Steps

  1. Identify the right and left castanets

    Gently close each instrument once, one after the other, and compare the sound: higher on the right, lower on the left. A marking often identifies the right castanet, but markings are not standardized; place the instruments on the right and left accordingly after comparing their sounds.

  2. Expose both loops

    First take a castanet and loosen its adjustable fastening until you can see both thumb loops. Untangle any crossed sections of cord without pulling the cord out of the holes; both loops should be able to fit your thumb.

  3. Put your thumb through both loops

    Slide your thumb through the double loop and place its two strands parallel to each other on the distal phalanx, just above the thumb joint on the nail side. Leave space between the cord and your nail; keep the joint crease clear.

  4. Align the bowls with your palm

    Let the bowls hang from their suspension toward your palm, with the hollow sides facing each other. Curl your fingers loosely around them: You should be able to reach the outer bowl without bending your wrist or tucking your thumb in tightly.

  5. Adjust the cord step by step

    Hold the castanet with your free hand and shorten the loops a little at a time using the adjustable fastening. Stop as soon as the instrument stays on your thumb when your fingers are relaxed; both strands should rest against it without leaving a deep pressure groove.

  6. Test closing and releasing

    Press the shells together slowly with your fingers and release them again, without playing a rhythm. They should close and release; if they get stuck, loosen the cord a little and adjust the alignment instead of pressing harder.

  7. Adjust the second castanet separately

    Put on the other castanet in the same way and adjust its cord independently. Then briefly hold both hands in a comfortable practice position: the fit stays stable, your fingers remain mobile, and neither thumb tingles or changes color.

Small adjustments instead of tightening further

This way

  • Place both loops parallel on your thumb
  • Make a slipping loop smaller in small increments
  • If the shells stick, adjust the fit and tension
  • If you feel tingling, remove the castanet immediately

Not like this

  • Use only one loop and pull it especially tight
  • Tighten the cord with a strong jerk
  • Close pinching cups using more finger strength
  • Put up with tingling as a necessary adjustment period

Your seat control in three phases

Before putting them on

Preparation

After putting it on

Fit test

After the first short exercise

Follow-up check

Frequently Asked Questions

  1. For the usual teaching setup, you do not switch the castanets if you are left-handed. The higher-pitched one stays on the right, and the lower-pitched one on the left. This arrangement refers to the roles of the instruments, not your writing hand; when adjusting them, each hand may still need a different loop size.

Practice together with the right posture

On udansa connect, you can find people to practice Flamenco with. Arrange to practice with castanets, and take time for a posture check before the first notes.

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Practice together with the right posture

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