Disklavier

Thanks for the responses, Phil and SpencerList.  I was wondering if I had to buy two of the WIDI-X devices to make it work.  Given the cost, I'm tempted to go with the MidAir Audio device.  My concern with the MidAir device is its range.  The device will have to penetrate a brick wall that is two bricks thick.  On the other hand, I have other wireless devices that penetrate my brick wall, so the Midair device will "probably" work (?).  

Looks like I should buy from a place with a good return policy!

Lowdebt4me