Question

Select the value of Nyuna Shruti interval from the following:

• A. 81/80
• B. 256/243
• C. 52/27
• D. 25/24

Hint:

Remembering key intervals in just intonation can help quickly identify such questions. Always cross-reference with known ratios to ensure accuracy.

Answer 1

The Correct Option is B

Step 1: Concept
Nyuna Shruti is a microtonal interval in Indian classical music, specifically within the just intonation system. It corresponds to the ratio of frequencies that represents this particular musical interval.

Step 2: Meaning
The Nyuna Shruti interval is defined by its frequency ratio, which must be accurately identified from the given options.

Step 3: Analysis
To determine the correct value of the Nyuna Shruti interval, we need to compare each option with known just intonation intervals. The Nyuna Shruti interval is a well-defined ratio in this system: Option A: \$\frac\{81\}\{80\}\$ - This represents a syntonic comma, which is not the Nyuna Shruti. Option B: \$\frac\{256\}\{243\}\$ - This is known as the diesis and is closely related to the Nyuna Shruti but not exactly it. Option C: \$\frac\{52\}\{27\}\$ - This does not correspond to any standard interval in just intonation that matches the Nyuna Shruti. Option D: \$\frac\{25\}\{24\}\$ - This represents a septimal comma and is also not the Nyuna Shruti. The correct value for the Nyuna Shruti interval, based on established music theory, is indeed \$\frac\{256\}\{243\}\$. This ratio accurately reflects the specific microtonal difference in Indian classical music that corresponds to this interval.

Step 4: Conclusion
By comparing each option with known just intonation intervals and their corresponding ratios, we can conclude that the correct value for the Nyuna Shruti interval is \$\frac\{256\}\{243\}\$. Final Answer: (B)