My first exciting discovery: the limpet shells can be bowed. Played this way they produce clear, singing, high tones, similar to bowed glass. Each individual shell has its own pitch and I've picked out a set of shells/tones that (to my ears) work well together.
I'm eager to use the shells in a composition, but it's pretty tough to bow them while they're just lying on a table, so first I have to figure out a good way to mount them. This is a bit tricky
My first attempt at mounting a limpet shell worked, but was pretty ugly visually. It's just too mechanical for my taste.
Yes, I know there are no trees in Antarctica, but I've decided to use driftwood in constructing my instruments anyway. I considered other materials (metal, plastic, ceramics, non-penguin bones), but none of these would have originated in Antarctica either, and most options seemed even further removed from the natural world. At least driftwood is an organic material. It is easy to work with and the bleached forms blend well visually with the limpet shells and penguin bones. Also I like the fact that driftwood comes to us via the sea. I am reminded that the Pacific (which my local specimens travel through) extends far to south, down to where the Antarctic Circumpolar Current connects and mixes its waters with those of the Atlantic and Indian Oceans. It's also fun to think back in geological time to the eras (40 million plus years ago) in which trees did grow in Antarctica.
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And now, back to work!