Khushal Khan was a vocalist and instrumentalist in the Mughal court. He was the foremost luminary of the durbar of the Mughal emperor Aurangzeb. He was trained in alap and dhrupad by his father Lal Khan "Gunsamundra." Khushal Khan was the teacher of Aurangzeb in classical music.
References
Khushal Khan Gunsamundra Wikipedia(Text) CC BY-SA