I'm Darwin (not my real name), hailing from Australia (but not Darwin, as it turns out). I was actually thinking of the dolphin from seaQuest DSV when I picked my username and not the renowned naturalist (although I am a fan of him, too).
I'm a musician (multi-instrumentalist), composer and part-time music teacher.
I think I'm either ISTP or ISFP in MBTT. I'm probably 9w1 in the enneagram although 5w6 is also possible. I type myself as SLI in socionics.
I really have no idea what to say about myself in introductions.