In the early dawn of Shadowkeep's construction, Noitulove, already a
notorious bard of the era, did some serious researching at the stones
from which the Great library of Shadowkeep was formed. He found out in his
exclusive and ear-destructing experiments that when one plays an instrument
from the right distance, volume and pitch - you actually can target the
sound into one direction and create a horrible tune which no one can
bear without getting his/her/its eardrums disrupted or badly hurting!
(power: dexterity)