I’m currently experimenting with Delta + Alpha, to see what happens with that. I’ve just uploaded 3 presets to my web space. mejc.demon.co.uk/bwg
I’m using a low Alpha frequency of 8Hz, and the delta frequency for presets 1 and 2 is 3Hz, but for preset 3 I’m trying 0.9Hz (Euphoria). I haven’t tested preset 3 yet.
The first preset didn’t really work properely, because I had the first tone sweep down from 15 to 8, and then 3Hz fade in, and this didn’t do much.
For preset 2, I decided to fade in a second 8Hz once the first one had reached 8Hz. This was at a different carrier tone. This second one then sweeps down to 3Hz while the first one stays at 8Hz. I listened to this, but only got as far down as about 4Hz before thinking it had gone on for longer than it had and that I had to get up and do something else. However, on the way down, it was an interesting experience. Very relaxed and kind of like a feeling of starting to lose touch with my body, but then once I decided to get up I became fully alert really easily.
The third preset is exactly the same is the second one, apart from the fact that it goes down to 0.9Hz instead of 3Hz.
I’ve yet to test preset 3, and I’ll probably test preset 2 again because I didn’t listen to it all the way through the first time.
I really like the idea of 8Hz being the higher frequency, because, being right at the bottom end of the Alpha range, it seams to be the most relaxed you can become whilst still remaining quite alert. This combined with the second frequency then going down from 8Hz to a lower frequency, seams to enable greater relaxation and altered states whilst still remaining alert.
Clark, if you want to test these, let me know how you get on. I have uploaded preset 1 just in case you want to try that, but personally I would just skip to 2 and 3.
Ed.