WEEK FOUR
TRANSPOSITION
Transposition means a change of key or Clef of a piece of music. Soloist often asks their accompanist to transpose a song from one key to another – in most cases to a lower key. E.g. From G to F or vice versa.
Apart from transposing from one key to another, it is sometimes necessary to transpose a piece from one clef to another. Clef transposition may become necessary when the part played by a particular instrument is given to another type of instrument.
There are two major way of transposing a piece of music
- Transposition from one Clef to another
- Transposition from a key to another
Transposing from one clef to another
a
The middle C indicated on the first leger line below the treble staff is the same note on the first leger above the bass clef.
b
In (a), the Cs shown on the treble and bass clefs are the same sound at the same pitch level.
(b) Similarly, the sound of CDE on the treble clef is exactly the same as those written on the bass clef. With a clear understanding of the above, transposition from one clef to another becomes a simple matter. Let us see the following examples:
Example 1
Write the following tune, an octave lower in the bass clef.
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Answer
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Transposing a melody into another key
A good knowledge of interval is essential for the transposing a tune from one key to another.
Example
Transpose the music below to G major
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Answer
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