Hi JohnK!
It is a pleasure to read your posts!
I am enjoying my (sic!)music indeed...opera, classical,etc...it is a dream!
Yu're saying ..."...use different measuring procedures...resulting in different values..."I give up, I am a mechanical engineer, the music is only my greatest passion...If you measure a piece of wood for istance, using two different methods ( a tape as opposed to...laser, let's say)how could you get two different values? Am I doing a mistake by this comparison?

All the best,
Octavian