PIANO TUNING TEMPERAMENT
ANALYSIS AND SCORING
These are usually free scorings generated by a recording of M3's and P4's submitted to me by one of my subscribers, but this particular tuning was taken of someone's YouTune channel. Read the story below.
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Piano: Unknown
Tuned by: Cobrun Sells using Verituner
The Story of this Tuning
Cobrun came to me about 5 years ago wanting to learn how to tune pianos better.
Recently he emailed me a spreadsheet of readings he had taken from a tuning he did using the CyberTuner ETD.
He tuned each note so that the lights were still. He then used CyberTuner to measure the partials of each string three times and averaged them.
Then he calculated to differences between the coincident partials which gives the interval beat rates.
I took those beat rates and plugged them into the scoring system and that is the marks you see below.
YOUR M3 RESULTS
MARK: 68.0% (Goal 80%) FAIL!
Goal: Chromatically increasing by 0% to 12%
No Recorded Intervals
YOUR P4 RESULTS
MARK: 96.5% (Goal 80%)
Goal: 0.5 bps to 1.5 bps
No Recorded Intervals
GRADING OF THE TEMPERAMENT
This temperament has been marked with the new marking system. The old system used levels. The new system uses a formula. The result is that tunings that are close to the limit lose less marks and tunings that are way off lose more marks. See graph.
INSIGHTS
You must understand interval sizes in the following courses:
Equal Temperament, and Wide, Narrow, and Pure Intervals,
in order to follow the logic explained in the analysis above.
Traditional Refinement Procedure (Obsolete)
In refining a temperament, we identify two or more problems that suggest the same note may be too high or too low, and then change that note to fix multiple problems.
This reiterative method helps us improve the temperament bit by bit.
This is why it is imperative that, if you want to improve your aural tuning, you must improve your beat speed recognition.
Exercises like these can help greatly.
You are encouraged to read the analysis and confirm aurally that you can hear the findings, and understand how the improvements suggested would improve the beat speed progressions.
In this way, you will improve your ability to rationalize the logic, and improve your ear to be able to hear smaller and smaller beat speed differences.
Improving these skills will greatly improve your temperament.
IMPORTANT
Traditional refinement procedures require you to finish the temperament before you can have any insight.
They also require you to test multiple intervals before you get any valuable information. 
The Go A.P.E. Sequence allows you to self correct before you are finished.
Also, because of the incredible accuracy in the Go A.P.E method, you fix notes the way they were tuned. (No searching high and low for reasons why a note is wrong)
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