Why is this not stopping the sound? :/

Any ideas? Thanks!

function onTouch(part)
local humanoid = part.Parent:FindFirstChild("Humanoid")
if (humanoid ~= nil) then
local p = game.Players:FindFirstChild(part.Parent.Name)
if p ~=nil and p.PlayerGui.RecordRoomMusic.IsPlaying.Value == true then
p.PlayerGui.RecordRoomMusic:Stop()
end
end
end

script.Parent.Touched:connect(onTouch)

Note - the music is definitely playing when I step on the brick and there are no errors in the output

Not sure if this world effect it or not, but ~~~~~~~~~~~~~~~~~ if (humanoid~=nil) then

 Doesn't need brackets.