Module:Harmonics in equal: Difference between revisions
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-- option intervals | -- option intervals | ||
local interv = intervals.prime | local interv = intervals.prime | ||
if frame.args['intervals'] then | if frame.args['intervals'] and string.len(frame.args['intervals']) > 0 then | ||
interv = intervals[frame.args['intervals']] | interv = intervals[frame.args['intervals']] | ||
end | end | ||