Youtube processes the uploaded video/audio to their streaming standard.
As expected, but now I have a reference at least. It sounded way more compressed. Can also be the streaming-guys stuff, I don't know.
When listening to the guest BE's mix his vocal was so loud it almost sounded funny through the monitors at the desk, but it sounded more or less fine when I listened to the stream after the show. I mixed the opening girl with the piano her voice wasn't sitting as much on top of the piano comparing to what I heard out of the reference monitors.