Listening to the newest one there you did with the dreamstation. It has soothing parts indeed, though that high pitched noise that is apreggiated really takes away from that easy going feel. It's hard to listen two I thought, but that's me. I think the only thing is the sound you used, not the register it is playing at. Consider changing it perhaps.
Very good music I think for yoga and what not, which is probably what you intend to use it for. I know where to go should I try yoga one day .
If you haven't already, give my stuff a listen,
Peace