What is the difference between 'song' and 'gazal'?

Question:

What is the difference between 'song' and 'gazal'?

Best Answer - Chosen by Asker:

Gazal originated in Iran in the 10th century A.D. It grew from the Persian qasida, which in verse form had come to Iran from Arabia. Ghazals have very rich culture infact it was very famous among the kings and queens of india in mughal period. It is not possible to get a full understanding of ghazal poetry without at least being familiar some concepts of Sufism. Person needs to have intance emotions and feelings and the knowledge of urdu words to ubderstand the depth of ghazals