The Use of Frequencies in The Ark

We use what are known as Solfeggio frequencies inside The Ark, which range from

396Hz to 963Hz. Each frequency is traditionally associated with a different energy centre and an aspect of our emotional wellbeing and everyday life.

The name Solfeggio comes from solfège, the musical system behind the familiar Do, Re, Mi, Fa, Sol, La scale. Its roots can be traced to 11th-century Italy, when the monk and music teacher Guido of Arezzo used syllables taken from the Latin hymn Ut queant laxis to help singers recognise and learn musical notes. However, the particular sequence of frequencies used today—such as 396Hz, 417Hz and 528Hz—was developed and popularised much more recently as a sound-wellness framework. It should therefore not be presented as a scientifically verified medieval tuning system, although it draws its name and inspiration from this much older musical tradition.

396Hz (Root) is linked with security, stability and feeling grounded. 417Hz (Sacral) relates to emotions, relationships, creativity and our ability to adapt to change. 528Hz (Solar Plexus) is associated with confidence, personal energy and positive transformation. 639Hz (Heart) focuses on connection, compassion and emotional openness. 741Hz (Throat) relates to communication, expression and speaking honestly. 852Hz (Third Eye) is associated with intuition, perspective and mental clarity, while 963Hz (Crown) supports a sense of inner connection, purpose and wider awareness.

These associations provide a framework for selecting the sounds used during an Ark session. Before entering The Ark, the client completes a non-diagnostic, HRV-based biofeedback reading. This helps us identify which energy centres appear lower, under greater pressure or less balanced at that particular time. We can then tailor the session towards those areas rather than using exactly the same frequencies for every person.

Our sessions run according to time, with different formats allowing us to work with three, four or all seven energy centres. We explain which areas the biofeedback data has highlighted and why we believe they may be relevant to how the client is feeling in everyday life. However, the process is always collaborative. Some clients already have a strong sense of the emotions, experiences or energy centres they would like to focus on, and we also use their guidance when shaping the session.

Scientific research into the full Solfeggio sequence remains limited, so we do not claim that an individual frequency can treat or cure a medical condition. There is, however, broader evidence that music and structured sound can affect heart rate, emotional state and autonomic nervous-system activity. One small human study involving nine participants reported reduced tension and changes in stress-related measures after listening to music tuned to 528Hz, but considerably larger and more rigorous studies are needed before frequency-specific conclusions can be drawn.

Within The Ark, these frequencies form part of a calm and immersive experience designed to support the body in moving away from everyday pressure and towards a more settled and regulated state. This is the least you can expect though, if you read the reviews you will understand how for some people it has gone much further than this.

Whilst studies are limited, there is no argument as to what our clients experience, feel and see during the session as the frequencies combine with the quartz element to produce an unforgettable experience.

To see those experiences head over to our Instagram page where you can see numerous client videos; it has to be seen to be believed - @thearkmcr.