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| | Bharata's Vina (Site not responding. Last check: 2007-10-22) |
 | | Consequently, even though Bharata was under the impression that the pramana sruti represents a constant interval, the fact remains that a scientific or artistic experience of 22-tone equal temperament is impossible without advanced mathematics. |
 | | Refer to Figure 21(a), Row 1, and notice that Sa, Ma, Pa, and Sa' are vertically aligned with ratios 1/1, 4/3, 3/2, and 2/1, respectively, in Row 4; and that all 4-sruti intervals in Row 2 are vertically aligned with interval ratios 9/8 in Row 3. |
 | | Since 4 srutis represents ratio 9/8, and 3 srutis, ratio 10/9, calculate the difference between these two intervals by dividing the larger ratio by the smaller ratio: 9/8 ÷ 10/9 = 81/80 = 21.5 ¢. |
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