Sarah Matthews wrote a well-dressing song - like this as best I can tell (please correct as appropriate):

Well Dressing Song - Sarah Matthews

Give thanks and give praise now that the water it doth flow
It brings us good health and life and helps us all to grow
Ch:
So dress the well with colors gay, beat the drum and sing hooray
Praise be, we can see the water flow today (2x)

On palettes of clay, season's colors dress the well
We've crafted our scenes of village life our tales to tell

It was long, long ago, oh, when it started who can say
But every year you will find us here, it's our well-dressing day


If anyone has words to the Five Wells I would appreciate them - too many local references for me to work it out, I fear.