What is Lay?

Lay or tempo is everywhere around us. Sun rises daily because the earth rotates around the sun with a certain Lay or speed. A day is a periodic, cyclical event which starts at sunrise and ends at sunset. So there is a certain rhythm or tempo to it.

Similarly, in music we maintain certain tempo. Initially, the vocalist starts in a slower speed because the mood is meditative and introspective. The vocalist also establishes the Swars when the speed is slow. Later on, the vocalist may increase the speed. But the vocalist will always stick to a specific tempo or Lay until it is changed.