A Comparative Study of Some of the Leading Music Systems of the 15th, 16th, 17th & 18th Centuries c12.42

रिधयोः परश्रुतिगतेश्वतस्र इह पंच षट् तथाश्रुतः।
देशीरागेषु अभिवीक्ष्यते च षट् तथा गमयोः॥