JoinSound is a plugin that plays a sound to all players in line when a player with the joinsound.havejoinsound or joinsound.havequitsound permission connects or disconnects. You can select the join and the quit sound in the config and set the volume and the pitch for the TWO sounds.

In default, the join sound is : ui.toast.challenge_complete and the quit sound is : block.beacon.deactivate.

Have fun ^^ !