Harmonize

4th-level divination (Sound Spells)
Casting time: 1 action
Range: Self
Target: Any creature within 100 feet of you that is not behind total cover
Components: V, S, M (a tuning fork)
Duration: Concentration, up to 1 minute
Classes: Bard, Druid, Cleric
Subclasses: Bard (College of Bells)

You ring out a tone that can be heard up to 100 feet away. until the end of your next turn, you know the location of any creature wihtin 100 feet of you that is not behind total cover. You learn the size and shape of any being whose presence you sense, but not its exact nature (as if you were handling a three-dimensional model you cannot see).

For the duration of the spell, you can perceive your surroundings using hearing alone as if you had blindsight out to a range of 60 feet.

This spell ends if you become deafened.