Plays the song of Lutian that summons a chorus of troubadour's spirits to protect you. They flit around you to a distance of 15 feet for the duration.
When you use this item, you can designate any number of creatures you can see to be unaffected by it. An affected creature's speed is halved in the area, and when the creature enters the area for the first time on a turn or starts its turn there, it must make a Wisdom saving throw. On a failed save, the creature takes 1d8 + (proficiency) radiant damage. On a successful save, the creature takes half as much damage. The music box must be wound every turn or it will stop playing at the end of this turn.
The music box gains an extra 1d8 Radiant damage on Bard levels 5, 11 and 17.