Custom Notification Sound or a few to choose from for Desktop would be awesome!

[miiila]

I have a custom notification sound for the phone app, and it makes a big difference. The desktop one grates on my nerves. 

Custom sound would be awesome, or if that's too much trouble, maybe (5) different ones to choose from, including a prettier option? Many of us are sitting right in front of their screen, working, or trying to think 😉 and don't need a sound that could raise the dead.