i love your work keep up the good work!
now I have request of you, can you make one like this without the Delta wave?
I like your work so much BUT you can only use them for sleep
I would like to use your work for meditation 
Delta waves are great for sleep but something to avid when meditating as it will put you to sleep or at least make very difficult to achieve the necessary state of consciousness.
so what do you think are you willing to make one that cycles  through Alpha and Theta only?
I have meditation tracks coming soon, but for now you can use this one: https://youtu.be/2aQrMI1tqIo
Torren Saxon