
I had the excellent fortune to see humpback whales breaching the water off the coast of San Jose del Cabo, and got to hear them while underwater! They were too far away to be seen while diving, but their calls reached us from a surprising distance.
The musical notation is not standard, having been invented developed by several musicians and mathematicians over decades specifically to encode whale calls. You can read the Smithsonian article about it right here!
This was also a bit of an artistic experiment for myself. I tried watercolor and gouache on marker paper and produced some interesting results!