Theta waves have a frequency between 4 and 7.5 hertz, making them slower than more wakeful alpha but faster than the dreamless slumber of delta. Theta brainwaves are the frequencies of nighttime dreams and REM sleep when the brain goes through bursts of activity and eye movement. People also experience theta waves in a state of light sleep, deep relaxation, during meditation and prayer, and when daydreaming. Theta waves produce an experience of inward wakefulness where we become disengaged from the outside world while engaging in inner activity. At the lower frequencies of theta, sleeping states are experienced, and at the higher range of frequency, awake relaxed states are experienced. 
First of all thank you for your amazing website, I have a question regarding these matters, I can make both binaural beats and isochronic tones for myself but I doubt for low frequencies states (Theta and Delta) which one is better? Because I searched a lot and saw that binaural beats are better for low frequencies and for high frequencies (Beta Gamma Lambda….) isochronic tones are more effective. Also, for Alpha states some said isochronic and other said binaural.
The various mental states of the individual are thought to take place across a varied range of frequencies, or brainwaves. By encouraging the frequency following process, entrainment is able to create positive change in the brain, through matching carefully-selected frequencies of light and/or sound. The stimulus enables the individual to access a different state of consciousness, which can be useful for a number of benefits including relaxation, anxiety management, stress reduction and more.
By exposing the brain to special computer generated tones that are pulsed at a specific rhythmic frequency, the brain will synchronize its own electrical impulses to that same frequency. This means the brain becomes "entrained", or matched, to the specific frequency of the pulses, which gives you the ability to choose the primary frequency you want to experience in your brain. By guiding the brain into deeper (slower) frequency brainwave patterns, you can induce a profoundly deep state of relaxation and meditation with almost no effort.
Isochronic tones are basically just a single tone with the volume being turned on and off at regular intervals. When you apply the same effects to music or a noise, it’s usually referred to as amplitude entrainment effects (in Mind Workstation anyway). When you apply the on/off effect to music or noise it’s usually done by targeting a specific frequency range in the sound and only turning that part on/off, leaving the rest of the music/noise untouched. What that does is allow parts of the music/noise to play without being distorted/interrupted, making it sound more pleasant to listen to. It produces a kind of fluttering sound as I like to call it and you can adjust the level of intensity.

Doing almost any routine, repetitive activity (like vacuuming, shredding paper or knitting), or reciting a word that represents how you wish you felt (such as calm) is a quick way to achieve a Zen-like state. Studies show the effects lower blood pressure and slow heart rate and breathing. The crucial elements are to focus on a word, your breathing or a movement and to bring your attention back to your task if your mind wanders or negative thoughts intrude. Or look to your faith for a mantra: A recent study published in the Journal of Advanced Nursing found that repeating phrases with spiritual meanings helped participants cope with a range of problems, from anxiety to insomnia.
·         THETA waves exist between 4 and 7 Hz. This is commonly referred to as the dream or “twilight” state. Theta is associated with learning, memory, REM sleep and dreaming. Memory development is enhanced while in this state. When in a theta brainwave state, memory is improved (especially long term memory), and access to unconscious material, reveries, free association, insights and creative ideas is increased.
After a few more trips I decided to get brave & try something new. Being a bit of a color genius, he recommended departing from the blonde life to try being a redhead -- the very color that had done me wrong so many times before. But having experienced his work firsthand, I put my hair in his hands as I listened to him shouting color codes to his assistant and then once again, away he went for bowls of magic (insert major deep-breath moment). The results were nothing short of incredible. Not only was color beautiful, it complemented my skin tone & eye color as if it was always supposed to be that way.

“Whereas my regular meditation practice gives slow results, I can get into a state of deep relaxation very quickly using the Brain Salon. This is so useful, especially when I need to make a presentation or deliver a pitch. The series helps me de-condition myself from my mind's negative patterns - patterns of stress, anxiety and fear - and instead installs new patterns which help me achieve my goals and end self-sabotage. Love it. Keep up the good work.”