I'm noticing that the volume of music seems to have been very much reduced when using the Music app with iOS 10 B2 and my Bluetooth wireless headphones. On iOS 9 and iOS10 B1, I was used to having the volume set to around two-thirds for comfortable listening. But with iOS10 B2 I need to have it set to max, and it's still not quite loud enough. It affects my iPhone 6 Plus, but not my iPad Pro 12" (also on Beta 2) which is much louder, using the same headphones, for any given volume setting. Has anyone else noticed anything like this?