What do you think the 23rd Letter would sound like?  What would it sound like if the whales were the only ones who could make it?  I’ve always envisioned a very deep OM-like sound, such a deep, vibrating, rumbling low-end bass that it could cause earthquakes and volcanoes!  But I’m open to other ideas.  Whales have an amazing range. Their songs morph continuously. They make the deep sounds I’m thinking of, but ethereal, otherworldly high-pitched moans, and crackling, popping noises also.  Too bad Thing a Day can’t host audio files. Or maybe it can!  If you have a link to a whale sound you think would work well for The 23rd Letter, please post it!