Module:ET: Difference between revisions

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 function p.as_string(et)
 	return et.size .. et.suffix
+end
+-- convert steps to a proper ratio (except that it is a float approximation)
+function p.backslash_ratio(et, steps)
+	if et.size == 0 then
+		return 1
+	end
+	return rat.as_float(et.equave) ^ (steps / et.size)
+end
+-- convert steps to cents
+function p.cents(et, steps)
+	steps = steps or 1
+	return 1200 * steps / et.size * math.log(rat.as_float(et.equave)) / math.log(2)
 end
 return p