User:MisterShafXen/55ed8/7
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55 equal divisions of 8/7 (abbreviated 55ed8/7) is a nonoctave tuning system that divides the interval of 8/7 into 55 equal parts of about 4.2 ¢ each. Each step represents a frequency ratio of (8/7)1/55, or the 55th root of 8/7.