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.FILL 
augmented sixth chords, they almost always have
primarily contrapuntal significance, the outer voices expanding by
half step movement.
.BEGIN VERBATIM
 
Example 53
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.FILL INDENT 6
	However, since they are so often used as a means of tonicizing
new areas (see Example 33), it is usually advisable to make their
presence clear in an analysis.  The augmented sixth interval creates a
situation wherein the dominant tends to be tonicized (Example 53, F%4S%1
leads to G) and at the same time a tonic role for the dominant
is weakened by the effect of presenting its 2nd as flatted (Ab to G).
The actual result is that added strength is given to the %2dominant role%1
of the final "resolution" of the A6 chord, since the flatted note is
most easily taken as the %4F%16 of the original tonic.  Thus, augmented
sixth chords will be said to function as part of a tonic a major 3rd
%2above%1 the %2lower%1 member of the augmented sixth interval (see Example 53).
 

	Because the G6 chord presents the identical acoustical
situation as an ordinary dominant 7th chord (i.e., major 3rd,
minor 3rd, minor 3rd), its enharmonic form will often be used as a
means to move rapidly to a relatively distant tonic.
.BEGIN VERBATIM
 
Example 54
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