CHAPTER VIII.--On the Positions--The Individual Requirements of

the Orchestral Player and Soloist--The Necessity of "Stretching" for the Intervals--The Locality of the Neck Positions--The Enharmonic Difference of Sharp and Flat Keys--Absolute Pitch--How to Leap any Awkward Interval--The Positions not Determined by Mathematical Rules, but by the "Ear"--Shifting--"Economy of Motion" _v._ "Effect"--Choice of Positions 42