Reverb recreates how sound behaves in a room, hall, cathedral, or any physical space. When sound hits surfaces, it reflects back with slight delays, creating a sense of depth and space.
Common reverb types: room (small, natural), plate (bright, smooth), hall (large, dramatic), spring (vintage, metallic), and convolution (sampled from real spaces).
In mixing, reverb places instruments in a virtual space, adds depth to dry recordings, and creates atmosphere. Too little reverb sounds flat and clinical; too much sounds washed out and muddy. Afrobeats production typically uses reverb sparingly compared to genres like ambient or shoegaze.