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Scarlatti - Popular Keyboard Sonatas

What Scarlatti is most prominently remembered for are the 555 short keyboard sonatas originally labelled Essercizi (Exercises). When he died in Madrid, Scarlatti left this treasury of manuscripts, which were largely unplayed beyond Spain and Portugal until pianist Carl Czerny published a selection of the sonatas in 1839. 34 of the most popular sonatas have been added to Piano Street’s sheet music library which now contains 192 of the sonatas by Scarlatti. Read more >>

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Author Topic: Compound to simple time signatures  (Read 1628 times)
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« on: February 10, 2015, 04:35:00 PM »

Hello, I've come across this question and I'm a little puzzled about the last bar. The question was to change the time from compound to simple time without changing the rhythm. I'm a bit stumped as to why the minims haven't changed to crochets and why the crotchets didn't change to minims!!

Any words of wisdom on this would be greatly appreciated!!

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« Reply #1 on: February 10, 2015, 11:23:25 PM »

To convert a/b time to c/d time you take each note (x) and the new note (y) is :

y = (c/a) * (b/d) * x

So in this case

y = 3/9 * 4/2 x
   = 1/3 * 2 * x
   = 2/3x

So, a dotted mimim changes to a minim.
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