Thanks, frum punk, for the clue. This entry was inspired by his post here (and the comments that follow it).
So I did a little research. It's no joke. Here, check these out:
An Interview On The History and The Story Behind Jewish A Cappella
Link above is titled "Breaking The Silence Of Sefirah –– Sort of."
Interesting. Not my minhag (custom), but neat to learn what some other folks are (not, in this case) doing.