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This
lesson will be the shortest lesson of our entire 101 week series,
but don't let the shortness of it trick you into thinking it's not
important.
POLYTONALITY AND SUPERIMPOSITION
Polytonality
refers to two key centers at once, like playing in the key of C
and the key of G at the same time. For example, I could play in C in
my left hand while improvising on the G scale in my right hand:
Superimposition refers to one chord piled on top of another
chord, such as the E flat chord over the C chord:
Both
of these techniques are used by contemporary pianists to some
degree, and it is likely that this trend will
increase, so you would be wise to get up to speed on this trend.
Next
issue well take up the subject of forms for improvisation. See you
then.
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