|Wilson's comparison and guide to transcribing|
subharmonic scales to a pythagorean system
Wilson might be the first to mention the use of tuning the exit hole of a subharmonic flute to either a fourth or fifth of one of the holes, hence these designations in the upper of the two sets of blocks. This practice he observed in the tunings found within his large collection of South American flutes. The ratios in between the blocks show the difference between the two sets of scales. The chart is one way we might transcribe subharmonic scales and pythagorean scales and melodies into each other. Unsigned or labeled, it was a document the archivist received from him by at least 1978.