DIYbanter - rule scales, 3R 4R etc.

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Cydrome Leader

September 4th 15 07:55 PM

rule scales, 3R 4R etc.

I know it's easy enough to lookup what rules with 3R or 16R graduations
are, but what do the 3, 4, 16 and whatever even really mean? What's the
story behind this systems or naming convention?

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