Sorry but that's irrelevant. A homeopathy practitioner could say the same thing.
Their site front page says in big font: "Dramatically improve focus, relaxation & sleep". And it says science all over the place and contains pretty sciency charts. An intentionally wide range of charts. Vertical and horizontal bar charts, pie charts, line graphs, all to make you go "this looks legit science!"
So where is the peer-reviewed, randomized, controlled, double blind trial to support these claims? The only study that tries to compare it with placebo music seems to be unpublished as of yet and all we can see is some charts. We don't see their methodology, the results, significance etc.
I would have no problem with this if they didn't brand it so extremely heavily on science.