it's called a quartet
it call a quartet
pro:per part det:art n
it's called a quartet.
ɪ t s WORD_BOUNDARY k ɔ l d WORD_BOUNDARY ʌ WORD_BOUNDARY k w ɔ ɹ t ɛ t WORD_BOUNDARY
i t ' s WORD_BOUNDARY c a l l e d WORD_BOUNDARY a WORD_BOUNDARY q u a r t e t . WORD_BOUNDARY