Ipad

There is no specific offer for free Apple Music when buying an iPad. You can however get the standard 3 months free if you have not subscribed to the service before.

Outside of that, you may however get 3 months free of TV+.

Link-> Apple Music - 3 months free - Apple

Link-> TV+ - 3 Months Free with qualified purchase - Apple.com

If you have not previously subscribed to Apple Music, if eligible for the offer, this option will be visible to you upon opening the Apple Music App from your new iPad.