50 studies:

Döring: Studien und Etüden für das Pianoforte, Op.24 No.1 (C major)
Döring: Studien und Etüden für das Pianoforte, Op.24 No.2 (C major)
Köhler: Moderato, Op.290 No.1 (C major)
Köhler: Moderato, Op.290 No.2 (D♭ major)
Gurlitt: Allegro molto, Op.58 No.8 (D♭ major)
Köhler: Moderato, Op.290 No.4 (C major)
Köhler: Alegretto vivace, Op.290 No.26 (C major)
Kessler: 24 Etudes de salon, Op.91 No.1 (C major)
Burgmüller: 12 Études, Op.105 No.5 (B♭ major)
Kroeger: Allegro molto, Op.30 No.1 (C major)
Czerny: 6 Oktavenstudien, Op.553 No.1 (C major)
Burgmüller: 12 Études, Op.105 No.9 (E major)
Hiller: Etudes, Op.15 No.5 (C major)
Biehl: Allegro, Op.144 No.1 (C major)
Biehl: Allegro, Op.144 No.3 (G major)
Czerny: The Art of Finger Dexterity, Op.740 No.49 (G major)
Kleinmichel: Allegretto con moto, Op.61 No.6 (C major)
Döring: 8 Octave Studies for the Piano, Op.25 No.2 (A minor)
Döring: 8 Octave Studies for the Piano, Op.25 No.1 (C major)
Birkedal-Barfod: Oktav-Etüden, Op.22 No.2 (B♭ major)
Vogt: Con fuoco, Op.145 No.9 (E minor)
Czerny: The Art of Finger Dexterity, Op.740 No.38 (B♭ major)
Döring: 8 Octave Studies for the Piano, Op.25 No.7 (E minor)
Döring: Studien und Etüden für das Pianoforte, Op.24 No.15 (C major)
Döring: Studien und Etüden für das Pianoforte, Op.24 No.14 (C major)
Czerny: The Art of Finger Dexterity, Op.740 No.33 (A♭ major)
Wolff: Octave Studies for Piano, Op.106 No.3 (E♭ major)
Biehl: Presto, Op.145 No.30 (C minor)
Seifert: Allegro moderato, Op.48 No.9 (F minor)
Handrock: Allegro moderato energico, Op.100 No.25 (C major)
Döring: 8 Octave Studies for the Piano, Op.25 No.5 (F major)
Döring: 8 Octave Studies for the Piano, Op.25 No.6 (C minor)
Köhler: Moderato, Op.290 No.16 (C major)
Vogt: Allegro, Op.145 No.15 (C major)
Vogt: Allegro, Op.145 No.16 (C major)
Biehl: Allegro risoluto, Op.154 No.12 (A minor)
Vogt: Allegro con fuoco, Op.145 No.12 (C major)
Loeschhorn: Larghetto, Op.179 No.5 (E♭ major)
Döhler: Andante semplice, Op.42 No.1 (C major)
Döhler: Allegro agitato, Op.42 No.40 (D minor)
Biehl: Moderato assai, Op.144 No.10 (E minor)
Köhler: Moderato assai, Op.290 No.14 (C minor)
Czerny: Die Schule des Legato und Staccato, Op.335 No.33 (A♭ major)
Biehl: Allegro moderato, Op.40 No.2 (G major)
Wolff: Octave Studies for Piano, Op.106 No.10 (C major)
Clementi: Gradus ad Parnassum, Op.44 No.28 (E♭ major)
Schmitt: Etudes, Op.16 Book 2 No.14 (G major)
Döhler: Allegro, Op.42 No.29 (B♭ major)
Pirkhert: Octaven-Etude, Op.11 (B minor)
Kroeger: Allegro vivo, Op.30 No.6 (E♭ major)