Nice! That's a good price. I was on their site, too. I saw that there was a reasonably priced used Zenergy Chakra chime and a 528 Hz tuning fork. I wanted to be sure and have the ability to play the requisite tones without resorting to electronic equipment, if necessary. I figure with the iPhone, iPad (for which I found another app, iFrequencies), and the physical chimes, I should be good to go.

I also found a freebie app that produces various Solfeggio tones... that's something I'm only just barely learning about, but basically it's another way to impart healing energies via sound. And since it was free, I figured the price was exactly right. So now I can read up on Solfeggio tones AND listen to them.