I found sites like this one, offering "hypnosis music" which they claim can lead to a life-change.
The sole objective of this site is to bring you FREE hypnosis mp3 downloads to help you uplift the quality of your life.
There are many categories of claims, such as weight loss, self-confidence, stress-reduction.
Here is an example of relaxation claims:
This hypnosis recording will do far more than just relax you. It will guide you into physical, mental, and emotional tranquility the like of which you have probably never experienced before, or unlikely to without help and assistance. It's been conservatively estimated this is probably the most downloaded mp3 hypnosis relaxation recording on the net, and now you can discover its wonders. Relax to this recording and notice how so much of your life becomes easier, smoother and so much more enjoyable
Do they work?