That's a good poem, Ann. Well done! You have a good sense of rhyme and rhythm, which is an essential of writing any but a free verse poem, and I can see what you're talking about clearly - good imagery. I've got a few suggestions -

1) I would put maybe three more syllables in the first line to help establish the rhythm a lttle more smoothly. I thought it was the third and fourth lines that were off, but now that I've reread it a few time, I think it's the first line.

2)I think the fifth line would read better just by switching the words - maybe They have also sung of winter instead of Also have they sung of winter. I think it flows better, and it's sure easier to read.

3) In the line to create a gentle pall I think I would change create to a one-syllable word like build. It fits the rhythm better.

4) I feel like the last four lines need a little rewording. 

You have

but what of the half-between place

where the raindrops do flow
but have little hope (or even chance)
of becoming snow?

I would change it to something like

but what about the half-way place 

where raindrops often flow

with little hope - or even chance - 

of turning into snow?

I love the idea behind this stanza - I just think it needs some tweaking.

Four things is (if you know me at all) a remarkably small number of suggestions. :D That's a beautiful poem - I would love to see more of your work. Keep it up!

-EH

That's a really good poem!

OK, OK, I don't know If I really like it but I'm not really a poetry fan.  I read and write poetry when it's assigned to me but othere than that I've wrote one other poem when I was 4 or something that went like this

Me,

See,

Bee,

Flee!

~laughs~