Q: how to add family member in apple music

Hello KeronPlaza,

Thank you for using Apple Support Communities. 

I see you are asking about adding family members to your Apple Music account. That sounds like you might be better served by setting up Family Sharing. The following link will provide you with additional information regarding Family Sharing, including setting it up. 

Family Sharing

If Family Sharing isn't for you and you just want to add them to your Apple Music account, this article should help you:

Manage your Apple Music membership on your iPhone, iPad, iPod touch, Mac, or PC

Best regards.