To use the extension, simply tap the plus icon to the left of the chat field and add Apple Music to any conversation. You can also interact directly with the bot in a chat just like you would any other of your friends. Simply search for "Apple Music" from the Messenger home screen and start talking to it to discover new artists and genres. You can even send an emoji to the chatbot and it will suggest a playlist to match. It's so 2017.
Even if you don't have an Apple Music subscription, you'll be able to listen to and share 30-second clips from any track you discover. As you might expect, you can sign up for Apple Music right in Messenger, which will then let you share and listen to full tracks after you commit to monthly payments.