Hamsadhvani does not contain madhyamam or dhaivatam. It is a pentatonic scale (audava-audava ragam in Carnatic music classification – audava meaning 'of 5'). Its ārohaṇa-avarohaṇa structure (ascending and descending scale) is as follows (see swaras in Carnatic music for details on below notation and terms):
ārohaṇa : S R2 G3 P N3 S
avarohaṇa : S N3 P G3 R2 S
The notes used in this scale are shadjam, chathusruthi rishabham, antara gandharam, panchamam and kakali nishadam.
Hamsadhvani may be considered to be a janya rāgam of Shankarabharanam, the 29th Melakarta rāgam, although it can also be considered to be derived from other melakarta rāgams, Sarasangi, Kalyani or Latangi, by dropping both madhyamam and dhaivatam. It is an elusive question as to whether Hamsadhvani is a janya of this or that melakarta. In Hindustani music it is associated with Bilaval thaat (equivalent of Shankarabharanam).
Carnatic sangeet, (Sanskrit: carnataka sangeetham) is the south Indian system of music. The performers and composers have, gained a world class reputation by singing and playing instruments such as veena (vina),violin, and mridangam. It has a rich history and a very sophisticated theoretical system.
