Casket – Mastadon Roblox Id 1259238979 Vote Up +1 Vote Down -0You already voted! This is the music code for Casket by Mastadon and the song id is as mentioned above. Please give it a thumbs up if it worked for you and a thumbs down if its not working so that we can see if they have taken it down due to copyright issues. Tags: Casket - Mastadon Roblox Id