The Greatest Song In The World

You perform a The Greatest and Best Song In The World. All Creatures you designate within 120 ft. of you must succeed on a Wisdom save or become Charmed. Charmed creatures cannot move or take any action, except to listen to your performance, tap their feet (if they have any), nod their head(s) (if they have any), and/or lift a light source in admiration for your music.

Further, while concentrating on the spell, you and Creatures who are friendly to you within range receive 2d6 HP at the start of your turn. You grant friendly Creatures 1 inspiration die when the song begins. For the next 24 hours, Friendly Creatures have advantage their next skill check and the next saving throw they make.

While you are concentrating on this spell, Creatures that pass their save who are still within range at the start of your turn in subsequent rounds must make another save. As long as you continue to concentrate on this spell or until it ends, you may change the number of creatures you are attempting to charm each round.

Fiends have disadvantage on saves against this spell and are Stunned the first time they fail a saving throw until the beginning of your next turn.