How shall I fix this Music Player script?

Hey, my nephew has made this Music Player script, yet it doesn't work. It's supposed to play one song, then when that finishes, it plays the next, and just keeps going, then loops back to the first one etc.

The errors in the console are things like this; ContentProvider:PreloadAsync() failed for rbxassetid://413625451

But the ID is different each time, and it prints them really fast.

I have no idea how to fix this, here is my code;

local cp = game:GetService('ContentProvider')

local assets = {
'rbxassetid://413625451',
'rbxassetid://142281425',
'rbxassetid://986301757',
'rbxassetid://327081386',
'rbxassetid://243372213',
'rbxassetid://887339742',
'rbxassetid://877806338',
'rbxassetid://697236118',
'rbxassetid://229990159',
'rbxassetid://333302122',
'rbxassetid://765968440',
'rbxassetid://430028323',
'rbxassetid://972103544',
'rbxassetid://931034724',
'rbxassetid://869684560',
}
cp:PreloadAsync(assets)

local music = Instance.new("Sound")
music.Archivable = true
music.Parent = script.Parent
music.Looped = true
music.Pitch = 1
music.Volume = 1
music.Name = "Music"

for i = 1, #assets do
	music.SoundId = i
	music:Play()
end