Thunder Note

You emit a crashing bang with a localized point of intensity targeting a creature within range. The target must succeed on a Constitution saving throw or take 1d8 thunder damage and become deafened until the start of their next turn. This attack ignores cover. Constitution saving throws to maintain concentration on spells triggered by this damage are made with disadvantage.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).