Playing sounds on your page requires the use of the "Event Graph." You will need the function block "Play Music"  and "Play Sound Effect". Click on the blue "Event Graph" button to flip to the the back side of the page to get started.

Play background music when the page starts

  1. Select the Events tab. Click the orange block "On Page Start" or drag it onto the page. 
  2. Select the Functions tab. Click the green block "Play Music" or drag it onto the page. 
  3. Click the yellow circle on the right side of the "On Page Start" block. 
  4. Drag and connect it with the enlarged yellow circle (condition) on the "Play Music" block.
  5. You can now preview to hear the music. 

via GIPHY

Play a sound effect when an object is clicked

  1. Select the Objects tab. Click on the object you wish to have the interaction with. 
  2. Select on the Events tab. Click the orange block "On Click" or drag it onto the page. 
  3. Select on the Functions tab. Click the green block "Play Sound Effect" or drag it onto the page. 
  4. Click on the purple circle on "Object" block. 
  5. Drag and connect it to the enlarged purple circle (object) on the "On Click" block. 
  6. Click on the yellow circle on the right side of the "On Click" block. 
  7. Drag and connect it with the enlarged yellow circle (condition) on the "Play Sound Effect" block.
  8. You can now preview. Click on the object to hear the sound effect played.

via GIPHY