MK's voice is not as sweet as Rafi Sahab's altough styles match. He takes off like Rafi Saab but has a landing proble. Listen to Rafi in ' Zindabaad " from Mughl e Aazam. This ais a very high pitched number (perhaps a 3rd or a notch above octave) but listen to Jiske diil mein pyaar na ho woh paththar hai Insaan Kahaaaaaaaaaaaaaaaaaaaaaan agian repeats Insaan Kahaaan aaaaaaaaaaaaaaaaaa. the toughest part is to come down with a smooth blend to a perfect landing. At the same time retaining the sweetness. MK was good at high pitch but could never do justice to the smooth landing from high altitudes Instead dropped suddenly like a hot cake.(Na sar jhuka ke jiyo listen what he does to 'Andheri raat mein in the same song)