An equal-tempered tuning: a reference pitch and a number of equal divisions of the octave. With divisions === 12 a step index is an ordinary MIDI number.
divisions === 12
Step index (MIDI number when divisions is 12) whose frequency is refFreq.
divisions
refFreq
Frequency in Hz of refStep.
refStep
Equal divisions of the octave (12 standard; e.g. 19 or 31 for microtonal).
An equal-tempered tuning: a reference pitch and a number of equal divisions of the octave. With
divisions === 12a step index is an ordinary MIDI number.