Novera Deepita on Kheyal
However, a detailed analysis of historical information would reveal that Kheyal originated in the 18th century and that it incorporated Indian musical theory and Persian musical expression, while its medium of expression was Hindi. Moreover, Kheyal was deeply influenced by Dhrupad--the oldest form of Hindustani music-which incidentally had come of age in the 13th century in North India.
Amir Khusro is usually credited for his role in helping shape Ghazal into its unique, distinctive form with a keen emphasis on lyrics, melody, and rhythmic variations. As is known to all and sundry, Ghazal had its origin in the Persian Qasidas but found its most perfect expression in Urdu in North India and, to a greater degree in its formative years, in Deccan, India.