The sound of the handpan has fascinated people all over the world since its invention. But what exactly makes this magical sound so unique? The answer lies in the overtones that accompany each played note. These subtle sounds, hovering above the fundamental tone, contribute to the harmony and depth of the handpan sound.
Overtones are additional frequencies that arise when an instrument is played. They are a natural accompaniment to the fundamental tone and give the sound its characteristic features. On the handpan, each note is designed to produce harmonic overtones that resonate perfectly with each other.
Overtones are created by the physical vibrations of an object—in this case, the handpan. When a note is struck, the metal begins to vibrate at a specific frequency, which we perceive as the fundamental tone.
At the same time, however, other parts of the handpan also vibrate, generating so-called partial vibrations or modes. These vibrations correspond to higher frequencies that are multiples of the fundamental tone. These higher frequencies are the overtones.
The role of resonance
The magic of overtones begins with the construction of the handpan. Every dent and every surface is shaped and tuned with utmost precision. An experienced handpan maker ensures that the fundamental tones and overtones resonate in perfect harmony. This complex craftsmanship makes each handpan a unique work of art.
Resonance plays a central role in the creation of overtones. The handpan is designed so that certain frequencies are amplified when the materials and shapes resonate. This means the energy of the vibration is optimally transmitted, making the overtones sound louder and clearer. Each sound field area of the handpan is precisely tuned to ensure harmonious and aesthetically pleasing resonance.
How do the overtones relate to each other?
The overtones of a handpan are related to each other in a fixed mathematical relationship, known as the overtone series . This series begins with the fundamental tone and includes frequencies that are multiples of the fundamental tone, such as double, triple, or quadruple the frequency.
In the handpan, these overtones are tuned to sound harmonious and blend together, rather than discordant. This ensures that the sound is both clear and rich. The careful tuning of the overtones is a key reason why the handpan's sound is perceived as so balanced and soothing.
How overtones create emotions
The mixture of fundamental tones and overtones is not only acoustically appealing, but also has a profound effect on our emotions.
The gentle, floating sounds can have a calming effect, reduce stress, and create a meditative atmosphere. This is one of the reasons why the handpan is so often used in yoga, meditation, and sound therapy.
Overtones are a universal language understood across cultures and borders. The sound of the handpan evokes something primal and timeless—a connection to our innermost self.
Perhaps it is precisely this timeless quality that touches people so deeply and makes the handpan such a special instrument.
The overtones of the handpan are a key to its magic.
They combine technique, artistry, and emotion to create a unique sound that touches the hearts of people all over the world. If you have the opportunity to experience a handpan live, close your eyes and let the overtones carry you away—a truly magical experience.
