Mohanam
Mohanam is a rāga in Carnatic music (musical scale of South Indian classical music). It is an audava rāga (or owdava rāga, meaning pentatonic scale). It is a janya rāga (derived scale), as it does not have all the seven swaras (musical notes).
The equivalent of Mohanam in Hindustani music is Bhoop (or Bhopali).
It is one of the common pentatonic scales across the world and is very popular in East Asian and South-east Asian music, including China and Japan.
Structure and Lakshana
Mohanam is a symmetric rāga that does not contain madhyamam or nishādham. It is a symmetric pentatonic scale (audava-audava raga 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 D2 S
avarohaṇa : S D2 P G3 R2 S
(the notes used in this scale are shadjam, chathusruthi rishabham, antara gandharam, panchamam, chathusruthi dhaivatham)
Mohanam is considered a janya rāga of Sankarabharanam, the 29th Melakarta rāga, though it can be derived from other melakarta rāgas, Kalyani, Harikambhoji, or Vachaspati, by dropping both madhyamam and nishādham. The Hindustani equivalent Bhoop is associated with Kalyan thaat (equivalent of Kalyani).