Local women gather together with drums and small hand cymbals to sing praises to Lord Vishnu. *A bhajan may be sung in a temple, in a home, under a tree in the open, or near a river bank or a place of historic significance. In Hinduism, Bhajan and its Bhakti analog Kirtan, have roots in the ancient metric and musical traditions of the Vedic era, particularly the Samaveda. The Samaveda samhita is not meant to be read as a text, it is like a musical score sheet that must be heard.*
*Wikipedia