This has been attached to almost every new EE contract and upgrade.
But it's free for ALL CUSTOMERS.
Just text MUSIC to 150 and you'l get 6 months free.
EE will also cover your data if you're listening in the UK and have at least some data left on your contract.
And if you're kicking yourself because you've already got yourself Apple Music, worry not, you can apply the 6 months to existing accounts.