Sahana (raga)

It is a Ubhaya Vakra sampoorna ragam. Vakra means crooked. Ubhaya Vakra means that the notes in both ascent and descent follow a zig zag pattern. The notes in ascending and descending scale do not follow a strict progression. Hence the note phrases contain such vakra phrases, lending a unique beauty to this rāgam. Though it is a sampoorna rāgam (contains all 7 notes), the vakra scale means it is not considered a melakarta, as melakarta rāgams must have strictly ascending and descending scales. It is also classified as a rakti raga (raga with high melodic content).

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 M₁ P M₁ D₂ N₂ Ṡ[lower-alpha 1]
• avarohaṇa: Ṡ N₂ D₂ P M₁ G₃ M₁ R₂ G₃ R₂ S[lower-alpha 2]

The notes used in this scale are Shadjam, Chathusruthi Rishabham, Antara Gandharam, Suddha Madhyamam, Panchamam, Chathusruthi Dhaivatham and Kaisiki Nishadham.

Its characteristic phrases are (R2 G3 M1 P),(P M1 D2 N2), (N2 S D2), (G3 M1 R2). Sahana has a distinct mood due to these phrases and characteristic gamakams and is rarely confused with other ragams.

Sahana has a close relationship to Malavi and to some extent Dwijawanthi/Jujavanti. While the use of Anthara Gaandharam in R2 G2 R2 makes it different from Dwijawanthi, since Dwijawanthi uses Saadharana Gaandharam, sahana has a closer relationship with Malavi which has an identical Vakra scale formation as Sahana.

There are a large number of popular songs composed in this rāgam in Carnatic Music as well as Tamil Film Music. Here are some Carnatic music compositions.

• Raghupate rama rakshasa bhima,Ee Vasudha,Giripai nelakona, dEhi tavapada bhaktim, oorake kalguna, Emana Dichevo and Vandanamu raghunandana composed by Thyagaraja
• Rama ika nannu brovara by Patnam Subramania Iyer
• Manamu kavalannu by Muthiah Bhagavatar
• Sri kamalambikaya by Muthuswami Dikshitar
• Inkevarunnaaru nannu" in Adi thalam by Annaswaami Sastri s/o Subbaraya Sastri
• Saravana Bhava in Adi thalam by Thanjavur Sankara Iyer
• Sri Vatapi Ganapathiye in Adi thalam by Papanasam Sivan
• Kavave Kanyakumari by Mangalampalli Balamuralikrishna
• Karunimpa, Varnam by Tiruvottiyur Tyaggaya
• Chittam Irangada by Papanasam Sivan
• Shanti Neelava Vendum by Sethumadhava Rao

• "Chentharmizhi" by M. Jayachandran (Perumazhakkalam - Malayalam)