Canon Composition: Lesson 3: The previous two lessons presented the basics but didn't modulate. Here is a whole note sketch of the A and B part for a Theme and Variations (see links below). This was the actual whole sketch that I used (and am still using, since I'm not quite done with this third movement of the sonata) to compose the four variations thus far. Here I illustrate how a third, free voice can be added to two imitating voices in order to spell out the harmony a little more clearly and to provide more harmonic structure from which to build non-imitative phrases (which I do in a couple of the variations presented thus far).
Lesson 3 PDF file
Lesson 3 Ogg audio file
You can see the resulting variations (theme plus four variations) at http://www.musicarroll.com/sonata_in_b_flat_theme_and_variations.pdf
and hear them at http://www.musicarroll.com/sonata_in_b_flat_theme_and_variations.ogg.
Enjoy! (Warning, the theme and variations are over 12 minutes long. These are 12 minutes of your life you won't get back! But may the ROI will be worth it!)