Board Thread:Game Discussion/@comment-36268311-20180720232537/@comment-2405:204:B08D:51B5:58E:D933:A060:9AF5-20180721052712

Ads override the speakers/headphone requirement by any other app & always has its requests accepted by the OS to play their own sound. The same applies to incoming calls & messages. You can still play music on your other app while playing the game. Just not during ads.