This is an arrangement that sounds beautiful on its own as a piano solo (or duet - one person could do the LH part and pedal, with the other person handling the RH part). But it's also very suitable for sing-along, and is a little lower (and more accessible for more voices) than the traditional key of Bb. Guitarists love this key as well, and can use the chord symbols to play along, if desired. Just after this download, you can do a free download of vocal parts (4 part - Soprano, Alto, Tenor, and Bass). These parts are Public Domain, so you can print as many copies as you'd like for sing-along purposes. These parts work beautifully with the piano version here.