- Why Western classical music uses a lot of accidental notes in the composition which is not part of scale but Indian classical music does not entertain to use any accidental notes in classical compositions.
- Why western music is so eager to bring the notes which is not part of the scale. Isn't it against the rule.
- Is there any particular rule to be followed even to use accidentals.
closed as too broad by Carl Witthoft, guidot, Richard, Tim, Dom♦ Nov 25 '18 at 23:05
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The short answer is that, in the 12-tone scale, accidentals are used either as transitional notes, as tension-builders, or because the key and/or mode (major,minor, Ionian, etc) can change many times from the titular key of the piece.
As to the tone-set used in Indian music, and the continent's development of harmony & theory, that's a major block of musical history.