What are cello harmonics?
Before diving into how to play cello harmonics, it’s essential to understand what they are. Cello harmonics are notes produced by lightly touching the string at specific nodes or points along the string while simultaneously bowing the string with a specific technique. These notes are higher in pitch than the open string, and they produce an ethereal and hauntingly beautiful sound.
How to produce cello harmonics?
The first step to producing cello harmonics is to determine where the nodes are located on each string. Nodes are points along a vibrating string where the amplitude of the vibration is zero. On the cello, these points are found by dividing the string length mathematically.
To produce the harmonic, gently touch the string with your finger without pressing it down firmly, creating a light contact. However, some cellists prefer to use the side of their thumb to touch the string rather than their fingers. It’s crucial to remember that the pressure should not be intense enough to produce any pitch. Finally, bow the string with a light, fast bow stroke that barely touches the string.
How to find the precise node?
Locating the exact node can be challenging, and it requires practice to acquire the skill. To find the precise node on any given string, experiment by sliding your finger across the string, moving closer and further away from the bridge while bowing continuously. You should hear a distinct pitch increase or decrease as you move your finger along the string, and the sound should be clearer and brighter when you are on the node. By moving your finger along the string, you can locate the node accurately, and you will develop a sense of where to place your finger.
What are the common types of cello harmonics?
There are two categories of cello harmonics: natural harmonics and artificial harmonics. Natural harmonics are played without any fingering, and they are extracted from stopping the string at its nodes. In contrast, artificial harmonics require you to press down on the string with one finger and use another finger to touch the string at the node higher up the string.
Artificial harmonics require simultaneous use of two fingers, and the second finger determines the pitch of the harmonic. Like natural harmonics, these harmonics can produce incredibly high pitches.
How to practice playing cello harmonics?
The only way to master cello harmonics is to practice them consistently. Cellists must experiment with a variety of bow speeds, bow pressure, and finger placements to produce different harmonics. When starting, practice in lower positions and as you become comfortable, progress to higher positions. It is also vital that you practice with a reliable reference pitch, such as an electronic tuner or a piano, to develop accurate intonation. With consistent practice, you’ll soon be able to master playing harmonics and incorporate them into your performances.
