OK. Tesserax, since you seem to be so knowledgable on the Airport Express and since this is such a good thread explaining how this thing works, I pose another question.
First to help make sure I got it right, if you have an Airport Express (AX1- Base) set us as your wireless router via ethernet hard link from an internet modem, AND you have a second Airport Express (AX 2) set up somewhere nearby, you can connect AX2 to AX1-Base which will then allow you to stream your computer's iTunes music library via AX 2's Aux output on external speakers WHILE ALSO allowing you to search the web (i,e. Letting you stream Pandora).
This is possible, correct?
Now the question: Can an Apple TV 2 connect to AX1-Base wirelessly? Goal: To wirelessly send Apple TV Audio (Netflix, Apple TV radio, etc.) via AX1-Base's connection out External Speakers connected to AX1-Base's AUX jack.
And P.S. Thank you for all the previous responses to everyone's questions. We thank you!