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For instance in piano technique, even putting aside the fact that gravity may actually replace muscle activity, the correct movement issue remains, as your fingers, having to work together with other muscles, are unable to achieve that movement precision level, which is a must for instrumental execution . Auxiliary muscles, being indeed activated instinctively to muster up the required strength, do provide more muscle activity, but at the same time they make movement control very difficult, whilst they also impair finger nimbleness and mobility. This work approach produces tiring, unphysiological piano technique, which falls far short of movement precision, and a healthy lifestyle for your joints.

By using our device,  your fingers get used to correct muscle activity, which makes it possible to improve muscle tone, as well as achieving perfect movement control, so instrumental performances improve considerably.

Happy Fingers® is a patented device that lets you activate and train both all joints in your hand, and all muscles moving your fingers, whilst respecting their natural physiology.


Your forearm and your wrist are placed naturally on the surface and are resting on this plane. Starting off form this initial position, your hand is leaning on a support located underneath your knuckles, the purpose of which is to hold your metacarpus up.

Muscle dissociation lets you activate joints of hands and fingers independently, without the help of other auxiliary muscles, such as the palmar flexor or the biceps in the arm, sometimes unwillingly. Attaining such muscle dissociation is the easiest and most natural way to master physiological joint movement independence, which means controlling movements easily.

Our device is recommended whenever precision and movement speed are a must for manual activity. The persons mainly benefiting from Happy Fingers are pianists, violinists, cellists, guitarists, harpists, clavicembalists, organists, as well as anyone needing top-range precision in manual activity for his/her profession.


finger muscles

if the finger muscles lack enough independent power they call on help from:

auxiliary muscles

to provide the rest of the power needed

(palmar flexor and/or bicipeps muscle)

Typical activity:

Your fingers are actually moving against the resistance provided by a small spring, which is adjusted following accurate measurements. In this way, your finger is made to work following its own natural activity, without calling on the palmar flexor, or other muscles located in your arm, or your shoulder. The spring’s resistance may be changed, depending on the potential exercise.

The metacarpus support is thus the key factor in this work approach, since it allows your finger to boost its muscle activity independently, as well as improving finger movement control.

With very few minutes of exercises you can thus achieve:

  1. muscle group dissociation

  2. an increase in contraction speed

  3. an increase in finger muscle tone

  4. an increase in relaxation speed for the muscles your finger is employing

  5. an increase in movement control


Happy Fingers® thus lets you train your single joints involved in instrumental technique, or any activity requiring finger movement precision : this is geared towards achieving correct movement.

this leads to downwards pressure, which severely inhibits fingers nimbleness