Step one: go to
www.dropbox.com and create an account.
Step two: install the Dropbox application on the iPad and on the home computer.
Step three: create a folder in the Dropbox and call it something. Like "Tunes".
Step four: copy the tune(s) to said folder (the home computer has to be online to copy the files to the Dropbox cloud).
Step five: right-click on the tune in that folder you want to share and select "Copy public link".
Step six: send said public link to the tune recipient some way.
https://dl.dropboxusercontent.com/u/2333581/Cinemagraph/Skogafoss_Iceland.gif