A Comparative Study of Some of the Leading Music Systems of the 15th, 16th, 17th & 18th Centuries c7.6

ऊर्ध्वलस्तु गांधारो मध्यमोपरिसंस्थितः ।
मस्य त्रिगतिभेदाश्च मनुः पक्षांतिको नृपः ॥