Here is how to convert Scala files to MIDI Tuning Standard (MTS)
sysex files. We have to select a Scala file, and add information about the
actual desired pitch for the scale to anchor to since Scala files by
themselves are for scales and not tunings. As they don’t include
the specific pitch information needed to create a complete instrument
tuning, we will add that here.
Scala files have the suffix .SCL
C3 = 261.625565 Hz
A3 = 440.000000 Hz
D3 = 293.333333 Hz
A3 = 415.000000 Hz
D3 = 276.666667 Hz
Middle C is C3. Concert A is A3.