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Chromatic Tones |
59 |
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A third or a fourth part may be added, thus forming complete chords; but each of these is merely an embellishment of the original chord: |
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These last are all explained in theory books as 'altered chords,' and in this way are reasonably accounted for. But it will be seen that in every case the principle of embellishment is a sufficient explanation.
These combinations, once established, may be emphasized, repeated and changed in position; but, when so treated, their derivation should always be borne in mind.
Exercise 22.
(a) Play the progressions shown in 71 in every major key.
(b) Play 72 in six different major keys.
(c) Experiment with the same devices in other chord-lines—the V7 and the IV.
(d) Play 75 in six major keys.
(e) Play all the foregoing in c minor, adapting the intervals to the minor mode.
• (f) Play phrases introducing some of these devices. |
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