Ngoma ya ndani is known among all the Mijikenda people down the Swahili coast from the Bajuni to the Digo, elsewhere it can be likened to msondo or unyago, part of the initiation of girls into adulthood. Baikoko was first seen in the Kisosora area of Tanga town and performed by a group called Bazoka.
Baikoko mara ya kwanza ilipigwa na kundi lijulikanalo Bazoka katika maeneo ya kisosora mkoani Tanga. Maeneo ya vijijini vifaa vya baikoko huwa havibadilishwi lakini kwa mjini hubadilishwa mara kwa mara kutokana na upatikanaji wa vifaa, kwa mfano ngoma za mjini zinatengenezwa kutokana na plastiki.