Variatio 27. Canone alla Nona. a 2 Clav.

Variation 27 is the last canon of the piece, at the ninth and in 6/8 time. This is the only canon where two manuals are specified (not due to hand-crossing difficulties), and the only pure canon of the work, because it does not have a bass line.

Variatio 28. a 2 Clav.

This variation is a two-part toccata in 3/4 time that employs a great deal of hand crossing. Trills are written out using 32nd notes and are present in most of the bars. The piece begins with a pattern in which each hand successively picks out a melodic line while also playing trills. Following this is a section with both hands playing in contrary motion in a melodic contour marked by 16th notes (bars 9-12). The end of the first section features trills again, in both hands now and mirroring one another:

The last 4 bars of the first section of Variation 28.

The second section starts and closes with the contrary motion idea seen in bars 9-12. Most of the closing bars feature trills in one or both hands.

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