Especially for Hammond fans - how easy is to tell what components are in a heard organ registration ? and into '6886 00000' codes ? I can tell the lowest voice, whether it's at stated frequency or 1 octave below (8' or 16') and highest (say 2' or 1') but cannot tell, for instance, how much 4' or 1 1/3' there is.

I've tested the ~20 voices of my Casio CTK-800 (please look topic "Keyboards, synths... > Casio keyboard voices"), most are Hammond or like.

For pipe organ too - how to tell what's in a complex registration ? I can tell principal, flute and reed voices, but some are quite hard to tell (the string-like ? how do they sound like they do ?)