Prior to each game, the whole Longhorn Band gathers in the band hall for a last-minute “pre-visualization” of the day’s performance. They talk/hum/sing their way through the half-time show while remaining seated (as you can see, there’s not a lot of room to march in here 🙂 ).
When they do actually play in this room, you wouldn’t believe the sound! 400 instruments in a confined space makes for quite a musical experience!