music = Instance.new("Sound",  game.Players.LocalPlayer.Character)
music.SoundId = "rbxassetid://402822162"
music.Looped = true --or false depending if you want it to loop or not
music.Pitch = 1 --If you have a bypassed sound, change the pitch
music.Volume = 4 --Depends on the amount of volume you want
music:Play(276691995)
local mesh = game.Players.LocalPlayer.Character.Head.Mesh
local sound = game.Players.LocalPlayer.Character.Head.Mesh
music:Play(276691995)
game:GetService("RunService").RenderStepped:connect(function()
    local loudness = music.PlaybackLoudness
    mesh.Scale = Vector3.new(loudness, loudness, loudness) * 0.01
end)