It's hard to imagine Christmas without a choir singing Handel's Messiah.
In recent years a new tradition has developed: the 'Messiah-sing.'
It operates like a pick-up basketball game. Anyone who wants to sing the Messiah shows up at a concert hall with music in-hand. Tenors sit with tenors and sopranos with sopranos. And then -- without rehearsal -- the concert begins.
New Hampshire Public Radio correspondent Doug MacPherson attended one-such Messiah-sing at the Music Hall in Portsmouth.
He filed this audio postcard.