To quickly insert musical notes into your Word document, you can assign a custom shortcut key for each symbol. For that, from the Symbol window, select the music symbol and then click on the ...

(period key) to access a bunch of useful symbols ... bullet point symbol) shows the musical note symbol (♪), alongside spade (♠), club (♣), heart (♥), and diamond (♦).

Still, there are many more! If you use special characters often, consider familiarizing yourself with these shortcut symbols ...

but you find them used in aural gameshows (for right/wrong answers), and for quick access to transition music, too. Some people need the equivalent of a “soundboard” for keyboard symbols.