I have apple one subscription but my Apple Music is not working why

Hi Eddymintah,

Thank you for participating in the Apple Support Communities. We understand you have an Apple One subscription but are unable to access Apple Music. If you already had an Apple Music subscription prior to signing up for the Apple One free trial, you'll want to make sure you don't cancel your existing subscriptions. Your existing subscriptions will automatically cancel when the free trial of Apple One ends and you start paying for Apple One. This article explains more about this: Bundle Apple subscriptions with Apple One - Apple Support.

"What's included with Apple One

Apple One includes a free 1-month trial for services that you don’t already have. After your free trial, services that you previously subscribed to are automatically included in Apple One. If you recently canceled a service, you might not be eligible for the free trial. Your plan automatically renews after the trial."

We hope this helps.

Take care.