Actual Tone Value Of Each Register by The Monkey Posted on January 3, 2013 The horizontal dotted lines denote the forced tones. The upright dotted lines denote the limits of the registers. The cones < denote the volume of tone in each register at any given point. Related PostsNature Of Vibratory MotionsFrom The Work Of Gregor Reisch #1Fernando Takes His Drum And Beats ItThe HarmoneonTry This C Chord This entry was posted in Graphics, Illustrations, Music, Old Books. Bookmark the permalink.