Apple Music and Multiple Devices
Can a single Apple user ID with Apple Music and iTunes Match play music on their iPad and iPhone simultaneously?
iPad Pro, iPadOS 17
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Yes, it is possible. Apple allows you to use your Apple Music subscription across multiple devices as long as they are signed in with the same Apple ID. However, the music libraries are synced across devices, so the same content is accessible on both, but each device can play its own selection at the same time without interference. This applies to both streaming from Apple Music and accessing your uploaded music through iTunes Match.