Nothing gets me more in the Christmas Spirit than hearing the Hallelujah Chorus from Handel's Messiah. Everytime I hear it, I have to resist the urge to sing along in the cafeteria line (or at least that was today's challenge). The song always brings back wonderful memories of being on stage at Orchestra Hall (now Symphony Center) in downtown Chicago with the Chicago Symphony Orchestra and Chorus when I was a member of the Glen Ellyn Children's Chorus. We'd have to trundle downtown in the bus, and wait backstage for the first half of the Messiah; we'd file on stage after intermission, and wait until the chorus starts.
The waiting was always worth it, because this was one of those times that I adored being a Soprano I. Granted, I adore the entire Christmas caroling season for the descants, as well, but there was something different about the Hallelujah Chorus. Maybe it was watching an entire theater stand up and sing along while we got to sing at the top (both pitch and volume) of our lungs, or perhaps the music.
And I'll even sing along now, though my high-G is a bit rusty.