Thus, the four types—Catuḥkalā, Dvikalā, etc.—are called the silent Tālas. The others, namely Śamyā, Tāla, Dhruvā, and Sannipāta, are considered the audible ones.
The swift movement of the downward-turned hand to the right side is called Vikṣepa. The drawing back or inward turning of the downward-facing hand is known as Praveśa.
When the combination consists of four Kalās, this is said to be the proper method. The Niṣkrāma and the Praveśa together are said to constitute two Kalās.