Q: How to "share" your itunes Library with a mac, apple TV and Ipads?

Hey jimyam,

Thanks for the question. If you wish to access your music library from multiple devices, anywhere, It sounds like iTunes Match may be the right service for you:

Apple - iTunes - Match

http://www.apple.com/itunes/itunes-match/

With iTunes Match, all your music can be stored in iCloud — even songs you’ve imported from CDs. You can access your music from all your devices and listen to your entire library wherever you are. And you'll also be able to listen to iTunes Radio without ads.

iTunes Store: Subscribing to iTunes Match

http://support.apple.com/kb/HT4914

Thanks,

Matt M.