The short answer
A widely used modern chakra-bowl convention maps Root through Crown to C, D, E, F, G, A and B. This is a practice convention, not a scientifically established set of physiological frequencies. A musical note also needs an octave and tuning reference before it has a unique frequency, so “Root = C” is not by itself a hertz value.
Traditional / contemporary associationMusical convention
The convention
Traditional / contemporary association
This sequence is widely used by contemporary makers and practitioners to organise a seven-bowl set. It gives a set a coherent musical shape and a shared vocabulary between buyer and seller. That is a real and useful function.
| # | Commonly associated with | Note | A4 = 440 Hz |
|---|---|---|---|
| 1 | Root | C3 | 130.81 Hz |
| 2 | Sacral | D3 | 146.83 Hz |
| 3 | Solar Plexus | E3 | 164.81 Hz |
| 4 | Heart | F3 | 174.61 Hz |
| 5 | Throat | G3 | 196.00 Hz |
| 6 | Third Eye | A3 | 220.00 Hz |
| 7 | Crown | B3 | 246.94 Hz |
What the convention is not
Traditional / contemporary association
It is not a measured physiological relationship. There is no experimental basis for the claim that a named note or frequency acts on a specific organ or energy centre, and the sequence itself is a modern arrangement rather than an ancient tuning system. Presenting it as established physiology misrepresents it.
Why “Root = C” is not a frequency
Musical convention
A note name identifies a pitch class, not a frequency. C exists in every octave, and each is double the one below. Before C becomes a number you need an octave — C3, C4 — and a tuning reference such as A4 = 440 Hz. Only then does C3 resolve to approximately 130.81 Hz. A chakra chart that lists notes without stating an octave and a reference has not specified a frequency at all.
How ANURAVA states it
The C3–B3 sequence is described as a commonly used chakra-to-note convention, the reference tuning is named alongside any frequency, and the values shown for a sequence are reference values rather than measurements of any particular bowl. Individual instruments are measured on their own terms, and a real measurement takes precedence over the chart.
Frequently asked
Which notes correspond to the seven chakras?
In the widely used modern convention: Root C, Sacral D, Solar Plexus E, Heart F, Throat G, Third Eye A, Crown B. This is a practice convention rather than a measured physiological mapping.
What note is the heart chakra?
F, in the common contemporary convention. As with the rest of the sequence, that is a convention, and F has no single frequency until an octave and tuning reference are stated.
Are chakra notes scientifically fixed?
No. There is no experimental basis for a fixed relationship between a musical note and a physiological or energetic centre. The sequence is a modern organising convention.
Sources & methodology
- First-partyANURAVA Acoustic Method v1.0 and Sound Passport recordsANURAVAFirst-party measurement protocol and per-instrument documentation.
Written and reviewed by ANURAVA. Where a statement rests on a musical convention or a traditional association rather than on measurement, it is labelled as such in the text above.