Horse Polo emoji

1. This is a user to use forum. You are not addressing Apple here directly.
2. Apple is not in charge of defining new emoji's. That responsibility belongs to the Unicode Consortium. You can enter a Emoji Proposal and if approved, it is added to the general Emoji definition and device manufacturers such as Google and Apple can then design an image to go with the emoji on their own devices.
   1. click here ➜ https://unicode.org/emoji/proposals.html

Apple does not define the emoji character set. That is under the control of the Unicode consortium.

Here is a link to the Unicode Consortium...

https://www.unicode.org/emoji/proposals.html

Being a musician