Raga system Carnatic music
a raga in carnatic music prescribes set of rules building melody – similar western concept of mode. specifies rules movements (aarohanam) , down (avarohanam), scale of notes should figure more , notes should used more sparingly, notes may sung gamaka (ornamentation), phrases should used or avoided, , on. in effect, series of obligatory musical events must observed, either absolutely or particular frequency.
in carnatic music, sampoorna ragas (those 7 notes in scales) classified system called melakarta, groups them according kinds of notes have. there seventy-two melakarta ragas, thirty 6 of madhyama (subdominant) shuddha (perfect fourth tonic), remaining thirty-six of madhyama (subdominant) prati (an augmented fourth tonic). ragas grouped sets of six, called chakras ( wheels , though segments in conventional representation) grouped according supertonic , mediant scale degrees. there system known katapayadi sankhya determine names of melakarta ragas.
ragas may divided 2 classes: janaka ragas (i.e. melakarta or parent ragas) , janya ragas (descendant ragas of particular janaka raga). janya ragas subclassified various categories.
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