Yeah it's not too difficult.
Here is a list of the musical symbols in Unicode (you'll need to scroll down to the proper symbols. It starts off with guitar emoji)
You can either select the symbol and copy and past it like you would just normal text.
Like so
♯ Sharp Sign
♭ Flat Sign
Or you can paste the 'HTML DEC code'
So this 𝅗𝅥
Produces this 𝅗𝅥
Or this 𝅘𝅥𝅮
Produces this 𝅘𝅥
It might not be the most elegant way to do it. I know there is a full on musical score notation system in epsilon but I've never looked at it. Might take a look at some point but I'm not a musician.
Hope that helps 😊