Share my iTunes on all my IOS devices from an external hard-drive

I have put my full iTunes library on an external hard-drive (2TB Lacie, USB connection only).

I`m doing this because my music library is geting to large now that i digitalized all my cd`s and starting to do the same for my vynil.

• How can I listen to this library on all my IOS devises?
• Can I create an wireless network for my iTunes in my house as not to connect (with the cable) to my hard-drive each time?
• Is it possible with the hardware I have or do I need to look for other devices?

Much appreciate the information you could share and give