The scales of Karnataka Devagandhari are as follows
Arohanam (Ascending) : S G3 M1 P N2 S’
Avarohanam (Descending) : S’ N2 D2 P M1 G3 R2 S
It is a Janya raga, derived from Harikambhoji (below), 28th in the Melakarta scale.
This raga has the same scale as Bhimpalas, which is the Carnatic name for Bhimpalasi, the Hindustani Raga. However Bhimpalas is considered a janya of the 22nd Melakarta Kharaharapriya. Karnataka Devagandhari is also similar to Abheri, which in itself has evolved over time. In fact, there is much discussion and dissention in the subject of these ragas leaving us lay listeners quite confused!! Suffice to say that if you are a lay listener, all these ragas sound remarkably similar. A serene raga, Karnataka Devagandhari conveys devotion with remarkable success. Palukuthe Nelathalli by Annamacharya and Pachashatpeetha Roopiniby Muthuswami Dikshithar are other well known kritis in this raga.
Note : The 12 notes in the octave are named as below. Please note that C is used as Sa for the sake of simplicity as the scale is relative in Carnatic Music. Also note that the scales paint only a superficial picture of the raga as the gamakas(ornamentations) are a very important part of a raga.