These are not "more complex details", it's using more words to say the same thing. It has nothing to do with implementation at all- just a group of speakers pla

These are not "more complex details", it's using more words to say the same thing. It has nothing to do with implementation at all- just a group of speakers playing the same sound source can have their volume adjusted as a group. Given that, I wonder why the court decided that playing a sound on a group of speakers (the first part of your quote) is allowed, but changing the volume across the group is not. It seems quite arbitrary.