In the Original Key (G major) Approximate Duration (with all repeats) 6′ + 5′ + 10′
Although this sonata is written in two movements, the long and deeply moving Adagio with which the first movement begins is almost like a whole separate movement. In fact its duration (6 minutes) is longer than that of the Allegro that follows, and it is usually considered as a different track number on recordings. So let’s consider this sonata as being composed of three movements, with the first two played “attaca” (without a break).
FIRST AND SECOND MOVEMENTS
In the first and second movements the only note alterations are the transposition down an octave of bars 188 and 189 and some revoicing of chords in bars 116 and 117. The lower-register passage found between bars 86-90 could, if we prefer, be transposed up an octave for better projection, but this has not been done in the edition presented here.
In the last movement (Theme and Variations) there are no note changes from the original.
Here is an alternative version of the first page of the third movement in which the entire third variation is transposed down an octave (as in the Easier Version) to make it more pleasant for both player and listener. The second page is not given here as it is identical to the above versions.