An explicit track is one that has curse words or language or art that is sexual, violent or offensive in nature.
It is up to you if your music should be marked as “explicit.”
IMPORTANT: If the content of your release is determined to be explicit by iTunes (this includes artwork) and is not marked as "explicit," your release may be hidden from sale in the store.
*Explicit content is not sold in Burkina Faso, India, Nepal, and Uzbekistan iTunes territories.
Also, if you mark one track as explicit on your album, the entire album will carry the “explicit” tag.