This math random music gives error and doesnt play music?

Here's some code. I'm pretty sure that this code will choose a new song every time.

local soundIds = {1841601203, 1838058421, 1843463175} -- put your soundIds in this table.
local soundObject = workspace.Sound -- your sound object
local lastMusicId = soundIds[1] --don't change this

while true do -- a while loop
    local playingMusicId = soundIds[math.random(1, #soundIds)] --,selects a random song from the soundId table
    print(playingMusicId)

    if playingMusicId == lastMusicId then -- checks if the current chosen music is the same song from last time
        repeat 
                  playingMusicId = soundIds[math.random(1, #soundIds)] wait(1) -- repeats until a the song is not equal to the last on
        until playingMusicId~= lastMusicId

        print(playingMusicId)
        lastMusicId = playingMusicId -- last song will be changed to the current song
    else -- otherwise
        soundObject.SoundId = "rbxassetid://" .. playingMusicId --  plays the song chosen
        soundObject:Play() -- plays it
        soundObject.Ended:Wait() -- waits until it ends and repeats the loop
    end
end

This will run forever since it's a while loop.