Alpha waves are brain waves that are between 8-12 Hz. Alpha waves were discovered in 1929 by Hans Berger. Alpha waves are produced in the brain when you are in relaxed but alert state. Alpha brain patterns are associated with being creative and improving problem solving skills. Many writers, musicians, artists use drugs like marijuana to become more creative. It has been documented that drugs like marijuana increase the alpha wave patterns in the brain. There are other ways to get in to the alpha state than using drugs.
For centuries different civilizations used music to achieve different brain wave patterns. Many warrior tribes such as Native American or Ottoman Janissary soldiers have been known to sing chants or songs in order to prepare their minds for battle. The brain patterns synchronize with the frequency of a auditory stimulus and this is why this method works. Meditators have used similar practices to go in to deeper levels of consciousness. I listen to alpha wave programs that can be downloaded off i-tunes or amazon to achieve this state. You can also listen to them on spotify app for free.
Another tool I spoke of previously, was in order to achieve alpha wave state is drinking green tea. Green tea is loaded with an amino acid called L-theanine. L-Theanine is known to stimulate alpha wave patterns in the brain. One thing I do to get in the alpha zone is to drink a hot cup of green tea and listen to a alpha wave music program at the same time. The alpha wave music programs are designed to stimulate your right and left brain simultaneously so it is quite important that you wear headphones for this practice. I use a noise canceling head phones to get the best out of this practice. Enjoy the alpha zone with this method.