The crucial bit of what you just said was in the last line mate, "but to someone who didn't go"
You weren't there, that small clip isn't of the best sound quality,granted the video only gives you a small snippet of the del-larks. But there were at least 2000 people stood in that room and the atmosphere was electric, and the band were totally professional and did a very authentic job of all the songs performed on the night.
I'm glad you didn't go!!