There is a great importance of laya in Indian Talas. Laya has been categorised basically into three types - Vilambit. Madhya and Druta. The rule of application in various forms of laya is called 'Yati'. Yati denotes application of 'gati'. Yati has been classified into five types, Sama, Strotogata, Gopuchha, Mridanga and Pipilika. In sama yati, the same laya is used throughout, that is beginning to end. In strotogata, initially we use slow (vilambit) laya whereas Madhya occurs in the middle and Drut laya comes at the end. When it comes to Gopuchha, exactly inverse order of layas is put to application vis a vis strotogata meaning thereby in the later Druta, Madhya laya and Vilambit laya occurs in the first, middle and last order. In Mridanga, drut laya is used at the outset as well as at the end and Madhya laya is used amidst thereof. In Pipilika, vilambit laya occurs in the beginning, at the end while madhya laya is used in middle order, hence 'Yati' is an important aspect of tala's Das Pranas.
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