I guess I was too intrigued by the thought of my own latter-day manna.
I could probably sing a different song each day for a month or more with all the suggestions you gave me. What's more, now I have a small-ish list of new songs to learn--and learning new songs is nearly always a treat.
If you're curious as to what was suggested, or if you're looking for your own list of singable songs, I compiled a listing from all the comments and e-mails that I got. It's on the sidebar. It's nearly at the end, so you'll have to scroll and scroll and scroll, but if you persevere, you'll find it.
And perseverance is a good quality to practice, don't you think?