Thunderous Dissonance

You perform in a way that causes a dissonant melody to start filling the air. All creatures in a 15 foot sphere must make a wisdom save. Anyone that fails will start hearing said melody get louder and louder, any enemy that can't hear will feel the thunderous vibrations all around them they will then take 1d10 damage, and be pushed back 5 feet. If they succeed they have disadvantage on saving throws against thunder damage the next round. At 5th level the spell does 2d10 damage, at 11th level the spelll does 3d10 damage, and at 17th level the spell does 4d10 thunder damage.