Por aquí dejo un script muy bueno de reproducción de música en Roblox Studio de forma programada.
local sound = Instance.new("Sound")
sound.Name = "Sound"
sound.SoundId = "http://www.roblox.com/asset/?id=874863250" -- Song ID at end.
sound.Volume = 0.45 -- Derp (I have quality speakers you might need to change this.)
sound.Pitch = 1 --Speed of Playback.
sound.Looped = true
sound.archivable = false
sound.Parent = game.Workspace
wait()
sound:play()FUENTES