This one wanted to go with the tune from Gartan Mother's Lullaby (granted, the accents aren't quite the same, but there's not enough difference to post a new ABC file).

Tree of Life, it has roots so deep, they grow within our souls.
Its trunk is our spine and strength, and grace when trouble calls.
Oh, spirits fill_ its branches high and sing into_ the night
And ever-y leaf_, so ever green is tipped with stars so bright.

Gather around this little tree, our Earthly kith and kin
Leave your worries in the past and let your joy begin
One year is over, and still the next, it is not yet_ begun
And so we gather around this tree while songs of hope are sung.