iMusic was created with a license from the company whose technology they use, The Transparent Corporation.
TransparentCorp has some great programs you can use for entrainment, white/pink noise, and now editing brainwave patterns into all your media.
I personally have used "Neuro-Programmer 2" with great success. Having tried many entrainment products, I can say that this one creates the desired effect every time.
Check it out at
Transparent Corporation