Alkan Perpetuum mobile, op.30b

Étude de vélocité, Préparatoire à l'Etude en mouvement semblable, d'aprés le Finale de Trio op.30 Etude by Isidor Philipp in preparation of the last movement to the Piano Trio by Alkan. Philipp has simply extracted the piano part from the Trio, with the following additions: On page 6 of the etude, where there was originally 2 bars rest in the piano part of the Trio, Philipp has simply repeated the previous pattern an extra two times. He does this twice more in the same section (though only 1 bar repeats), at places where there were originally rests. The equivalent place to compare in the Trio is on page 31. On page 7 of the etude, where there were originally simple chords in the piano part of the Trio, Philipp instead takes the semiquavers from the string parts for 8 bars. He then goes back to the original piano part for 10 bars, takes semiquavers from the string parts for 15 bars, and then goes back to the normal piano part for the remainder of the piece. The equivalent place to compare in the Trio is on page 32.