Raivaru is a type of Maldivian traditional singing,[1] where letters are swapped[clarification needed] to be sung in a certain melody without accompaniment.
With the development of the Maldivian culture and the introduction of the ground rules of literature (Adhabiyyaathu) and the improvement of the Dhivehi language, Raivaru transformed from a simple to a very developed art and part of the Maldivian syllabus for learning of Dhivehi as a first language.
With the newly made rules of Raivaru some basic rules were made on how the letters in a Raivaru were arranged.
These were merely the ground rules, Raivaru is an art so fine that in a perfectly synchronized raivaru, a lot of features and conditions have to be met .
They are as follows:[2] "Banduvah akuru": The name given to the second letter of the first word in every bas (verse).