oh gah
so remember how I said there were similarities between Japanese and Ashkenazic cultures (crappy family obligations, lousy tempers, completely overdone sentimentality, huge contributions to comic books despite how you're NOT supposed to become an artist) such that you could rewrite any Zen parable as a Chelm story and vice versa?
it turns out the exclamations made by shamisen players are "kakegoe" and one of the most common is "Sore," literally "ot azoy!"