For me, Dhrupad is the only language that I know. It is a form of art which involves both vocal music and instrumental music. The traditional practice of playing Alaap and Jod in an instrument has actually originated from Dhrupad.
Structurally, Dhrupad comprises of Alaap and Bandish. Above this, if I am to tell you what Dhrupad really is, I would say, it is a milestone of Indian music. It is a proof of the civilization of Indian music.