The sequence of 'Nastt' and 'Uddist' are related with:

Question

Accepted Answer

The correct option is 2:
The concepts of 'Nastt' and 'Uddist' are fundamental principles within the ancient Indian musicological discipline of *Prastar*, or permutation and combination, which is primarily applied to sequences of notes known as *Taans*. A *Taan* is a rapid melodic figure or sequence of notes used in the development of a *Raga*. The term 'Nastt' (meaning 'lost' or 'unknown') is the specific mathematical method utilized to determine the structure of the *Taan* that corresponds to a particular serial number within the overall list of all possible note sequences. Conversely, 'Uddist' (meaning 'indicated' or 'found') is the corresponding reverse method, which is employed to ascertain the serial number of a specific, known sequence of notes. As *Taans* are the core sequences that utilize these principles of enumeration and calculation, this option provides the most direct and accurate connection.

The incorrect option is 1:
Moorchhana refers to the process of modal shift, where the tonic (Sa) of an ancient *Gram* (parent scale) is systematically shifted to each of the other six notes in sequence, resulting in seven new scales or modes. This concept focuses on generating new melodic frameworks based on interval relationships, and not on the mathematical calculation or permutation of a specific sequence of notes, which is the function of Nastt and Uddist.

The incorrect option is 3:
Thaat is the parent scale or melodic framework of a *Raga* in modern Hindustani music, defined by the seven notes it uses, including their *shuddha*, *komal*, or *tivra* variations. While *Taans* are created within the boundaries of a *Thaat*, the *Thaat* itself is a static set of notes and does not involve the dynamic mathematical process of enumerating and identifying note sequences (*Taans*) which Nastt and Uddist are designed for.

The incorrect option is 4:
Taal is the organizational structure for rhythm and time in Indian classical music, concerned with the cyclic arrangement of beats (*matras*) and their divisions (*vibhaags*). Although *Prastar* principles can be theoretically applied to rhythmic sequences as well, the general context of note sequence permutation presented by 'Nastt' and 'Uddist' is far more fundamentally and practically related to the melodic arrangements of *Taans*.