वृत्तौ या वर्णमात्राभिश्चतुर्मात्राः प्रकीर्तिता । द्विगुणा दक्षिणे सा तु कला ज्ञेया प्रयोक्तृभिः ॥ ११४॥
That Kalā which in the Vṛtti style is said to have four mātrās in terms of varṇas should be known by performers to be double in measure in the Dakṣiṇa style.
english translation