If you've ever been to Symphony Hall to see the Boston Pop's Holdiay show, you know that they hit it out of the park. 

You'll have to excuse the footage, it's fan shot, but the sound is still great! They put on a spectacular show!  One of the highlights during the show is their version of The 12 Day's of Christmas,  they are able to incorporate multiple pieces of music into one amazing tune.  I was there recently and after the song the place went wild.