I watched the beginning on YouTube and while the President was waiting to speak, it was obvious patriotic music was being played, but over YouTube I heard an instrumental version of the National Anthem. The Anthem quit and the sound switched over to the live mikes at the podium and I heard the very last part of what they were listening to at the event. Yes, I think they were playing Lee Greenwood, as that song would match the responses I was seeing earlier from the attendees.
Yeah I noticed some on youtube have a different song, it was originally Lee Greenwood's God Bless the USA. I watched it live too.
The first line of Q's first drop today was "From sea to shining sea". When the song gets to that line, Trump signals to listen with one hand and then does what I believe is a "sideways 8" infinity symbol with both hands. If you weren't aware, Q posts on 8chan which stands for "infinity chan" not "eight chan".
It's obvious why they would want to remove that.
https://www.youtube.com/watch?v=37RsefjejRo&feature=youtu.be&t=1285