Our perception of the physical world relies upon the motion of ambient electromagnetic (EM) fields. While these operate across a continuous spectrum, our five senses are adapted to glimpse only narrow “windows” of included wavelengths. This serves to impair overt recognition of the functional relationships between them. The mode of interactivity proceeds according to the law of octaves. A piano is the classic example. Beginning at the lowest end, each note repeats the same identifiable quality across the entire keyboard through a successive doubling of frequency. If you were to open the lid a pluck one string, all harmonically related strings would vibrate in sympathetic resonance.

If such dynamical relationships within the entire EM spectrum were to be identified, they could be combined in one setting for mutual reinforcement. The key to unlocking this potential is simple mathematics. For example, if a specific frequency of visible light is successively divided by two, it will eventually descend into correspondence with an audible counterpart possessing the same subjective property. Due to autonomous aggregation of perceptual input by the subject, the experiential result thus becomes exponential to the number of senses addressed.

Rainbow Spectrum

The diagram at the beginning of this article depicts a tunable test bed for applying this gamut of influence. The color gel filters may be purchased from theatrical lighting suppliers. Recommended stock numbers are based upon comparison with actual tinted glass slides from an original Spectrochrome lamp of the type shown above. This system was devised by Dinshah Ghadiali in the early 1930’s. His instructional publications are still available from the Dhinshah Health Society. To simplify operations, we favor a generic rather than therapeutic approach, and therefore employ only the seven rainbow colors from his original palette of twelve.

  • Red – Stimulating
  • Orange – Harmonizing
  • Yellow – Cleansing
  • Green – Balancing
  • Blue – Sedating
  • Indigo – Internalizing
  • Violet – Transcending

The most appropriate color to apply in any given instance can be determined through a psychological questionnaire, or by dowsing the radial chart included in the Image Gallery to the right. This is then used as the “key” for addition of the sensory modalities described below.

Rosco theatrical gel swatch book.

The entirety of skin is known to respond to color. Hence a translucent white gown is typically worn. The occupied room should be free of external sources of light and background noise. After each session, its intended effect can be sustained through similarly colored food, clothing, spectacles and solarized water. As a further level of refinement, color coded stages of spiritual development are integral to the subtle anatomy of many esoteric teachings. A notable example is the seven chakras of Hinduism, psychic centers along the spine awakened through visualization and recitation of resonant “seed syllables”. Prescribed physical postures for their selective activation can thus also form part of the overall regimen.

Although this website does not deal with therapeutic applications, Dinshah’s chart above suggests a predictable influence of colored light upon human physiology. Controlled sensory environments can also be applied to help focus counseling sessions, massage and other hands-on modalities.


For localized activation of acupuncture nodes, colored gel can be positioned over the lens of a small incandescent flashlight. Sometimes a clear quartz crystal is affixed over the filter to cohere the light and allow gentle pressure to be applied. If performed under spread lighting, the complimentary color (e.g. orange for blue) may be utilized as a counterpoint to help shift energy around the body.

Accu colour wand

Beat and Tone

A single piece of gel is inserted into the filter holder of a theatrical “can” fitted with a Par 38 incandescent spot lamp. In our preferred setup, these are each connected to separate channels of a “color organ”, available in kit form for under $100. Because  a version with 120/250 volt output is required to power the lamps, a qualified professional is required to complete assembly. The purpose of this device is to filter the music’s tempo into to three discrete frequency bands, thereby providing a scintillation between individual lamps. This is more entraining on all levels than steady light.

In this system, musical choice is based upon an interpretive correlation between its conveyed mood and the color of influence. Below are suggestions from prior experience.

  • Red – Anything slow and “smokey” with base beat
  • Orange – M-ocean – Michael Stearns
  • Yellow – Sacred Space Music – Constance Demby
  • Green – Angelic Music – Iasos
  • Blue – Silk Road – Kitaro
  • Indigo – After I Said Goodnight – Kevin Braheny
  • Violet – Angle Love – Aeoliah

For full body immersion, the music should be administered as a standing wave through facing floor speakers rather than headphones. An audio frequency harmonic of the chosen color is mixed in at low level with the track. Two derivations of same, mathematical and subjective, are listed in the diagram at the beginning of this article. This can be introduced live or prerecorded from a software, hardware or online tone generator. Alternatively, a keyboard synthesizer enables a timbre adjustments in real time for visceral feedback. Impulse speakers can also be mounted under the table to add a synchronous massage-like vibration. One noted practitioner fitted DC powered, magnetic coils. These could be reversed in polarity to complement the known stimulating or sedative attribute of the applied color.

Par 38 theatrical light can. Use only incandescent lamps for the system described.

Aromatic Correspondences

The senses of smell, taste and touch represent primal inroads into the mind. As such, they evoke spontaneous feelings that may be correlated with those of color. These range from the arousal of red to the dreamy, introspective quality of violet. Aromas are best applied as natural herbs, resin or essential oil, smoldered upon self-igniting charcoal blocks. In addition to creating an evocative atmosphere, the chromatic vibration is transferred to the smoke and absorbed with each in-breath. Ensure the room is adequately ventilated as psychotropic turpines, long a feature of religious ceremonies, may be produced.

Radionic Color Projector

Radionic colour projector diagram
Radionic colour projector

A fascinating innovation of the mid 1900’s was the combination in a single device of color projection and radionics. A bank of numerically indexed tuners fed a therapeutic “rate” to coils situated in the path of the light. This allowed each form of sympathetically tuned energy to magnify the other. To the right is pictured a contemporary interpretation.

Keywords: Color therapy, Chromotherapy, Aromatherapy, Sound therapy, Music therapy, Sympathetic resonance, Synesthesia, Dinshah Ghadiali, Edwin Babbit color, Law of octaves, Chakras, Latifas, Form resonance, “Healing with Color” by Dr. Reuben Amber