Example of how to add an action to a button:
1. Add a button, double click button and click "Edit workflow"
2. Add the action "Play sound"
3. Add the link to the sound file
4. Done!
Demo link:
https://arvid-hast.bubbleapps.io/version-test/play-soundEditor link:
https://bubble.io/page?type=page&name=play-sound&id=arvid-hast&tab=tabs-1