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| | Safi Al-Din and Bartolomeo Ramis |
 | | As discussed in Chapter 11, Section 68, we may interpret the latter six 3-limit ratios as schisma variants, because we tend to perceive such complex 3-limit ratios as simple 5-limit ratios. |
 | | Furthermore, turn to Chapter 11, Table 38, and notice that one derives the Arabian schisma variants by either extending the ascending spiral to the 7th, 8th, 9th, and 10th “fifth” above 1/1, or by extending the descending spiral to the 7th, 8th, 9th, and 10th “fifth” below 1/1. |
 | | Consequently, D is a schisma equivalent of 9/8, and A is a schisma equivalent of 27/16. |
| www.chrysalis-foundation.org /Al-Din_&_Ramis.htm (2535 words) |
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