Make a Phonezoo Account, Upload, & Edit Your Audio Digging Deeper Page

Step 1: 

Go to http://www.phonezoo.com/home.do and sign up.  This site is totally free.  Be sure to leave the 3rd Party Offers box unchecked if you don’t want to get spammed.

Step 2: 

On Phonezoo, go to Home > Create Ringtone.  Browse to your audio file and upload it.  If you didn’t get your music from a Creative Commons site or make it yourself, it’s probably copyrighted.  Check the appropriate box.

Step 3: 

Use the Phonezoo editor to choose which part of the audio file you want as your ringtone.  Preview it by using the play button, and practice using fades!

Step 4: 

When you’re finished editing, choose “Save and Send to Phone”.