Op 8 no 2

• Bars 1-2
  1906: First two chords have bare octaves in the LH
• Bar 4
  1959: Allegro, full bar, 8/8 time signature
  1925: Allegro agitato, half-length bar, 8/8 in brackets (possibly editorial)
  1906: Allegrissimo half-note=100, full bar, lacks 8/8
• Bar 8
  1925: Hairpin diminuendo over the last two chords in the RH is missing
• Bar 18
  1959: Second and third chords lack Eb
  1925: All four LH chords include Eb, third not arpeggiated (presumably an oversight)
  1906: Second and third chords lack Eb, first chord has Eb as a three-quarter note
  The 1925 version agrees with the parallel passage at the end of the exposition (same in all three versions) and seems preferable.
• Bars 20-23
  1906 edition lacks any dynamics. There are several other places where the original edition lacks dynamics present in the later editions; I have not listed them all
• Bar 24
  1906 edition has ff
• Bar 52 (sostenuto instantamento)
  1959: marked senza ped
  1925: pedal during first half of bars 52 and 53, possibly editorial
  1906: no pedal marks here or anywhere else in the piece
• Bars 56-65
  1959: hairpins in the LH lack sforzandos throughout passage
  1925: sforzando on 3rd chord in middle of hairpin, bar 56 and final two bars
  1906: sforzando on 3rd chord in middle of hairpin, all bars
• Bars 71-74
  1959 edition has crotchet stems on the tenuto notes
• Bar 81
  1925 edition bears the additional indication unentschlossen, mit Eilfertigkeit
• Bar 91
  It is clearer in the 1925 edition that the hairpin dynamic applies to the RH and piano to the LH. It is the converse of bar 95. These and many other markings are absent from the 1906 edition.
• Bar 154
  1925: second beat misprinted B, should be G
• Bar 163
  1925: final RH chord misprinted, should mirror the previous bar
• Bars 164 and 166 (two bars after soffocando)
  In the 1925 and 1906 editions there is a LH sforzando on the 2nd beat of each of these bars. In the 1925 edition this is followed by a hairpin to p three quavers later on the low Eb. In bar 164 of the 1925 edition there is an obvious misprint in the second and third chords of the RH, which should mirror bar 166.
• Bar 201
  In the 1959 edition the held note in the RH is F natural and lasts a half note. In both the 1925 and 1906 editions it is the F sharp that is held, for a three quarter note, mirroring bar 46. It is unclear whether the change is genuine or a misreading of the original score, but the earlier version makes more sense harmonically.
• Bars 237-238
  In the 1925 edition the first beat of each bar has a sforzando.