This is why I would like you to regularly add new notification sounds please @SlackHQ. For those of us who have used Slack every single day for years (and do love it) sometimes the lizard brain goes to Worst Case Scenario as Default and needs help to reset! 
https://twitter.com/catherinemarfin/status/1331649977790173191 …
Thanks for the context, we really appreciate the feedback here. It's not something that we're currently working on, but we'll have to think about it for the future. 
