EXTEMPORE PLAYING - online tutorial
40 Lessons in how to correctly play improvisations.
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LESSON XIX |
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Modulation |
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The modern devices of modulation are so numerous and so varied that a whole volume might be devoted to this subject alone. It would only confuse the keyboard student if we were now to attempt anything like an exhaustive study of them. His best plan will be to gain a clear idea of a few well-known methods, which may always be effectively employed.
The general idea of modulating, or passing from one key into another, is that there must be some link or conÂnection between the two keys. This brings in the question as to which are the keys into which it is easiest to pass; and it is answered by saying that the keys chosen should be those most nearly corresponding in signatures. From any one key it is easy to modulate to another whose sigÂnature gives one sharp or one flat more or less. Thus, from C we can go to G, F, a minor, e minor or d minor: |
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These are the next related keys to C.
(i) A simple method is to leave the first key at one of its tonic chords (I or VI) and from this proceed at once to a dominant (7th or 9th) of the new key. Resolve this into the new key, and the process is accomplished. |
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[48] |
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