I'm learning Kuhlau's Sonatina Op. 55 No. 2, 3rd movement. I have the book of Kuhlau sonatinas edited by Keith Snell (see pic). I also watched the score shown in this youtube video. I found they differ in Measures 79~81, as you can see in the pictures. I watched a couple of players playing it on youtube and both seem to be playing the version in that youtube score. Which is correct?
Note: I've attempted to contact the editor, Keith Porter-Snell, to ask how he decided on his edition of the measures in question.
The first edition (1823, IMSLP) published the passage consistent with the YouTube video, and all other editions to which I have access follow suit.1
There is no evident musical justification for the difference. The closest parallel to Snell's version would be the occasional use of the "down a second, up a third" figure that appears in the A section (e.g., mm. 3-4). However, There are two good reasons for the 1823 version:
- It provides a climactic moment by hitting the highest note in the piece, the A6 in m. 81, and hitting it on beat 1 (where Snell's high point occurs on beat 3).
- It is roughly parallel to the opening of the piece where there is an upward scale followed by the upward leap of the third into the corresponding descending scale.
Snell well may have had access to other editions or autograph copies that justify his variation, but in the absence of knowing what those might be, I would take the 1823 edition, published in the year of composition, as authoritative.
1. Accessible editions: