Anga

Anga means part. In the context of a rāgam's scale, the terms poorvanga (meaning former part, in this case first-half) and uttaranga (latter part, or second-half) are used. Sa, Ri, Ga and Ma notes in a scale are referred are poorvanga, while Pa, Dha and Ni are referred as uttaranga
Found on http://en.wikipedia.org/wiki/Glossary_of_Carnatic_music
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