Cyclic ventilation is one of the advanced techniques in fenugreek performance, which enables the performer to breathe in the case of uninterrupted musical melody, greatly enhancing the coherence and expression of music. It is very important for fenugreek players to master the skills of cyclic ventilation. The following will elaborate the core steps and key points of cyclic ventilation.

1. Understand the principle: The essence of circular ventilation is to use the mouth and throat to store a part of the gas. When the breath is about to end, the new air is inhaled through the nasal cavity and the gas stored in the mouth is released at the same time, so as to achieve continuous playing. The key is to master the distribution and switching of breath.

2. Basic posture: Maintain a correct sitting or standing posture, relax your shoulders and neck, and ensure that you can breathe unimpeded. When playing, the base of the tongue is attached to the lower jaw to form an air flow channel, and the tip of the tongue touches the edge of the fenugreek blow hole to flexibly control the air flow in and out.

3. Breath control: When playing normally, store a small part of breath in the mouth in advance. When it is necessary to exchange air, quickly close the blow hole, compress the gas in the mouth by using the throat muscles, and at the same time, inhale quickly through the nasal cavity, and then open the blow hole to release the compressed gas in the mouth, so as to complete the seamless breathing switch.

4. Practice steps: Beginners can start with short sentences, gradually increase the control of breath by extending the playing time, and then slowly try to cycle breathing in long notes or continuous notes. Remember not to rush to success, should be step-by-step, each step to achieve fine and steady.

5. Practical application: The cyclic ventilation technique is not only suitable for the continuous playing of long notes, but also plays an important role in fast playing and complex repertoire, making the musical emotional expression more full and the melody lines more smooth.

In general, to master the circulation ventilation skills of fenugreek requires constant practice and experience. Through the fine control of the breath, the breath flow can be freely transformed, so as to freely swing in the performance and further enhance the artistic expression of fenugreek performance.