Hindustani heptatonic theory additionally stipulates that the second, third, sixth and
seventh degrees of heptatonic scale forms (septak) are also allowed only two
inflections each, in this case, one natural position, and one lowered (komal) position.
Arithmetically this produces 25, or thirty-two, possibilities, but Hindustani theory, in
contradistinction to Carnatic theory, excludes scale forms not commonly used.
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