How do I play a sound through a script?

First make the sound object variable. For example:

local mySound = game.Workspace.Sound --Or other location

Then use function :Play(). Is just really easy to understand what it does:

Plays the sound.

Change your script like this:

local mySound = game.Workspace.Sound --Or other location

mySound:Play()

Now when you play the game, the song will be played.

The function :Play() Is used to play sound objects, similarly :Stop() and :Pause() stop and pause it.

So to play it:

local sound = -- // wherever it may be;
sound:Play();

Or to pause it:

local sound = -- // wherever it may be;
sound:Pause();
-- // sound:Stop();

Use the function

:Play()

on the sound object. For example:

workspace.Sound:Play()