Music cover art or music album art is a piece of a visual fine art like a painting or a photograph which is related to the concept of the music or album.
Cover Art present your music before the audience start listening to it.
If you could turn music to picture, It would have been cover Art.
Visual Identity is everything related to your business which can be visualized to represent your brand.
Visual identity for your business is just like clothing for your body. It represent you & make impact on your character before you speak.