On the side of Shemini 10:6, the blue Tikkun Simanim quotes the mesorah that there are three places where a munach legarmei is before a mahpach: there, Emor 21:10, and Rut 1:2.
Then it says (in parentheses, not part of the quote from the mesorah):
ושאר יבאו לפני רביע או קדמא שלפני דרגא ואזלא
While munach legarmei before revii is very common, I don't remember ever seeing one before a kadma. According to the note, there must be at least two somewhere in Tanach. Where are they?