Open Sounds in NodeRed

I have added the only component I could find for Join in Node Red and it doesn't have any spot to add sounds.
It has text, title, URL, Icon URL and Name.
I am wanting to use Join to let me know when different things happen around my house (using homeassistant mainly) and would like to be able to specify different sounds for each event so I can know something is happening without pulling my phone out of my pocket for each and every notification.

My question is this: Is this an oversight or is there another way to add the sounds?

I should add that I am checking into messaging services and I don't have Join running on anything yet...just want to make sure I can customize sounds per event.