Inline G
Because this is the most commonly played specification in France, it is often called �French style� . This type of specification is when all the main action key work on the body, especially the G keys, is attached to one rod and therefore all the keys are in a straight line. It has been traditional for most professional players to use this specification since the last century. The mechanism has one inherent fault in a tendency for the B flat key to bind when fingering between third octave F and F#. This is particularly the case where the player has a 'heavy touch' and actually distorts the rods slightly as he/she plays. This can be eliminated where a 'Pinless' mechanism is used.
An example of an offset G
An offset G is the most common specification for a closed hole flutes. The G keys are built on their own rod, separate from the rest of the main action key work, hence making them slightly out of line with the rest of the keys. Open hole flutes can also be made �offset�. The main advantages to offset G keys are that the ring finger on the left hand is, generally, in a more comfortable position and that an E mechanism can be fitted reliably without the binding problems inherent in 'In-Line' mechanism. Open holes with offset G keys has become much more popular in recent years.
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