On 13/12/15 12:48, N. Andrew Walsh wrote:
Take a look at conversions.ly (sorry; mround is the equivalend function in
the spreadsheet I use to do the same thing). Those functions will convert
the input (given as a fraction comprising two integers) into Lily's
semitone values. That should allow you to convert between just-intonation
ratios an the nearest note name. Urs has some comments in there explaining
a bit how it works.
Converting from ratios to cents is easy. Converting between ratios and
cents requires a function from cents to ratios. That's a lot more
difficult because information is lost. You got us excited by suggesting
that had been solved.
Graham
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