Hi there Saltydog and welcome to the community
Now you are familiar with the various brainwave states, you can use them in whichever order you choose.
You can check out the benefits of each brainwave state in the chart at the bottom of the following link:-
Brainwave States
Here's a piece I have copied for you about the gamma tracks and their variety of use:-
HOW TO USE NIRVANA AND AWAKEN FOR
Enhanced learning, memory and Creativity etc.
The scientists have proven that by changing your state, you can improve the quality and experience of your entire life…
The effectiveness of the 40Hz frequency is due to the fact that it has a more global entrainment effect. 40Hz appears to have some natural harmonics of its own and they fall mostly into the Alpha and Theta ranges. By itself this is fascinating, but it gets even better. As you may be aware, I never mix entrainment frequencies within a track. I pick a single frequency as a primary and allow each person's brain to fill in the others according to its individual needs. The human brain requires something like 8 minutes to entrain to a frequency, and it only works if that frequency remains constant.
The 40Hz frequency is the one and only way I know of in which you can intentionally entrain to multiple frequencies at the same time. It isn't artificial and you're not forcing the brain to accept anything that isn't natural to it. I believe it would be more accurate to say that the 40Hz frequency allows the brain to more readily entrain to its own natural harmonics, rather than that the 40Hz tone itself contains the harmonics.
By itself this is fascinating, but it gets even better.
Because of this multi-entrainment aspect, a 40Hz track can be used for relaxation, meditation, creativity, study, stress reduction, and so forth equally well. Other frequencies tend to work best for more specific types of activities. The 40hz frequency is what we might call a "Jack of all trades".
You can play Nirvana or Awaken for as long as you choose to…
Increase your focus and concentration when reading or studying.
Improve memory performance.
Access your intuition.
Increase your creativity and problem solving ability.
Enhance sleep and ease of getting to sleep.
Hope this is helpful and wish you much peace and joy
