Concussive Chord

You release a blast of sound with your voice (verbal component) or your instrument (somatic component). Make a ranged spell attack against a creature within range. On a hit the creature takes 1d8 thunder damage. Creatures with keen senses can be targeted a range of 120 feet.

At Higher Levels: The damage of the chord increases when you reach 5th level (2d8), 11th (3d8), and 17th (4d8).