Click on the point within a document or email at which you want to insert a music symbol.
Activate the Number Lock function on your keyboard by pressing the "Num Lock" key.
Press and hold down the "Alt" button on either side of the space bar.
Press the "1" key and then the "3" key as you continue to hold down the "Alt" key in order to create an individual eighth note.
Press the "1" key followed by the "4" key as you hold down "Alt" if you want to create a pair of eighth notes that are connected.