Terrifying Cacophony

You play your instrument in such a disturbing and discordant way that the area around you vibrates with dread and fear. All nearby creatures that can hear you must succeed on Wisdom saving throw, or become frightened for 10 minutes. A creature can repeat the saving throw at the end of each of its turns, ending the effect upon success.

Successful saves render the creature immune to your Terrifying Cacophony for 24 hours.