Raga Bhairavi is a Bhashanga, raga,considered janya of 20th Mela Natabhairavi. Bhairavi is also one of the most common ragas in a Carnatic music concert, due to the scope for elaboration. There are a lot of compositions in this raga, which can be sung at any time of day.
 

Arohaṇa: S G2 R2 G2 M1 P D2 N2 S Avarohaṇa: S N2 D1 P M1 G2 R2 S
 

The notes that occur in this raga are Shadja, Chatusruti Rishabha, Sadharana Gandhara, Suddha Madhyama, Panchama, both Dhaivatas (Shuddha and Chatusruti), and Kaisiki Nishada.While a janya of Natabhairavi, Bhairavi takes the anya swaram D2 in the ascent in the phrase P D2 N2 S. In descent as well as in the phrase P D N D P the D1 of the parent scale is used.
 

This Raga is majestic in structure and is replete with gamakas. Swaras R2 and M1 can be prolonged without gamakam. The twisted arrangement of the Gandhara and Rishabha in the ascent with the phrase S G R G M and the ending of gamakam on G at R avoids the tone of Kharaharapriya or Mukhaari to set in.

 
Usage of Shuddha Dhaivatha in the descent as in the phrase P D N P D P adds a transient charm to the rAga.The Nishada, an important jeeva swara, can be rendered with varying degrees of gamaka, depending on which dhaivatha is used.This raga can be elaborated to beautiful effect in all three sthayis, but is very captivating in the upper madhya and thara sthayis.