A:	Something that's going to keep mu up to date.
ʌ WORD_BOUNDARY s ʌ m θ ɪ ŋ WORD_BOUNDARY ð æ t s WORD_BOUNDARY ɡ oʊ ɪ ŋ WORD_BOUNDARY t ə WORD_BOUNDARY k iː p WORD_BOUNDARY m uː WORD_BOUNDARY ʌ p WORD_BOUNDARY t ə WORD_BOUNDARY d eɪ t WORD_BOUNDARY