I am going to contribute some technical stuff.

1. It is an error to start thinking about heuchera and go bumbling off into the realm of the coral bells plant. The song is about lily of the valley.

So why coral bells? In the olden days, jewelry was carved from the pure white stone of coral reefs. I've seen it (I hope antique) for sale in Florida, and it is amazing how radiantly white a matte stone can be. The song is comparing the small white blooms of the lily of the valley to this coral jewelry.

I believe it is now illegal to produce this.

2. When I learned this song at the age of 10, I thought it was really ugly, and when it came time so sing songs in the 4H, I hoped it would be skipped. Fortunately, it usually was.

Decades would pass before I learned what the problem was. The problem was the long I in "white." It is a diphthong, which moves from ah to ee. If you have a number of untrained singers and some are singing ah while others are singing ee, the music seems out of tune. Thus my impression that "White Coral Bells" starts out really sour.

If it was "soft coral bells" or "sweet coral bells", it would come out better. I learned all about diphthongs from a person with a PhD in choral conducting, who was hired to coach our church choir for some big Christmas concerts. What she said made sense, and the way I dealt with it was to stand in front of a good singer and do exactly what she did when singing diphthongs. That way we blended.

Just for fun, I made a MIDI of the song and played it as a round. It's actually quite pretty.