This BGM album is specially tuned to 417Hz. 417Hz is a frequency said to be closely aligned with natural rhythms such as human heartbeat and breathing, offering a soothing and gentle sound experience. It is known to help release muscle tension, balance the autonomic nervous system, reduce stress, improve sleep quality, and support sustained focus and concentration. Perfect for work, study, or winding down before sleep, this album brings a calming atmosphere that helps you feel at ease. Let yourself be embraced by a sense of peace through its gentle tones.Meditative jazz that encourages a tranquil flow of thought. It enhances concentration, stimulates creativity, and balances the mind. This album is perfect for yoga or mindfulness practices.