Tap Applications.

Tap Settings.

Tap Wireless and network.

Tap USB utilities.

Tap Connect storage to PC.

Connect the data cable to the phone socket and to your computer's USB port.

Tap Connect USB storage.

Start a file manager on your computer and find your mobile phone in your computer's file system.

Go to the required folder in your computer's file system.

Highlight the required audio file and move or copy it to your mobile phone.