As everyone knows, in bedrock edition on phone, to get music disc sounds and ambient music, you need to download a marketplace pack. a few years back I had no trouble downloading the pack, and everything worked fine. but when I recently tried to download the music pack, it just didn't appear. I looked on reddit about this, and people just said to type "music" in the marketplace in the search bar, or just scroll to the bottom of the main marketplace page. I tried both methods, none of them worked. I'm not sure if the dlc has been removed, but I think the music could now be included in Minecraft on the phone, phones now have more than enough storage to contain it.