Earlier it was called Tokari naam.
It is so called because a tokari is played while singing it.
[1] A tokari is a single stringed musical instrument played with the fingers; a kind of guitar.
[2] These are usually philosophical songs based on human life, stories from Ramayana, Mahabharata, gods and goddesses.
Besides, stories of Sankardev and Madhavdeva is also sung here.