Cacaphony

You play your musical instrument as horribly as possible, weaving magic into every sour note. One creature you can see within 120 ft. must make a WIS save or take 3d8 Psychic damage and have disadvantage on WIS saves until it's next turn. 

Creatures that cannot hear are not affected by this spell.

Creatures with an INT of at least 10 that have proficiency with at least 1 musical instrument have disadvantage on the saving throw.

The spell gains 1d8 damage for every level over 3rd it is cast.