1)
What is the meaning of "v'Od Lo Ach ha'Meluchah"?
1.
Rashi: What is he lacking, that must be added to him? Only the kingship!
2.
Radak based on Targum Yonasan: What greatness did [the singers] not give to him? Only they did not call him king!
3.
Malbim: The one whom the nation chooses, is king. If most people follow him, he has potential kingship, just it is not [yet] actualized!