No sweat, right?
Looking back, she must have had more confidence in my skills than I had. She believed in me, so I set to work immediately. The hardest parts were to find familiar hymns that had melodies within one octave and then try to come up with new settings that were "not too hard but artistic." I got them to her on schedule and she said her group liked them a lot. (This project was not exactly what I would have chosen to do of my own volition. So, I went on to take a few of these arrangements and fill them out to fit my liking better!)
Usually, I write for chorus or a small ensemble of singers and piano. Occasionally, I have the opportunity to add one or two extra color instruments such as violin, flute or bells. And yet, I wonder what it would be like to write for a big choir with a full Symphonic orchestra...