There's a MAJOR bug on Minecraft Bedrock (specifically on the Switch) were when your playing the game it randomly freezes on a frame of the game for an extended period of time and makes the music buffer like a broken record. The game still seems to be running because mobs can still kill you and the night/day cycle changes after it stops. It can even freeze the console itself! I'm not sure why it happens exactly but, it needs to be fixed soon.