Henri Bertini - Fantaisie-valse, Op. 154

Measures 1–34 form the Intrada, alternating forceful chords, descending upper runs, lower octave figures, and pauses. The Allegro con brio begins at measure 35 with rising figures and sustained chords, followed by lighter upper runs. At measure 83, the Poco più lento introduces a quieter chordal melody above bass notes and separated chords. A contrasting E-major passage begins at measure 129 with accented paired notes, followed by an expressive melody at measure 153.

Short detached upper figures begin at measure 169, and a lower melodic line emerges at measure 185 beneath sustained upper harmonies. The music returns to E-flat major at measure 201 with quieter paired notes and descending runs. Repeated inner chords enter at measure 217, followed by broader melodic phrases and rising figures. The principal Con brio material returns at measure 241.

A slower passage in D-flat major begins at measure 289 with tied upper notes and paired melodic figures. At measure 321, the music returns to E-flat major with repeated inner notes, ornaments, and upper runs. Chordal exchanges recall the introduction at measure 343, followed by descending figures and a quieter melody at measure 373.

A long descending flourish spans the written bars at measures 401–402. At measure 404, a slurred upper figure appears over sustained lower notes, alternating with forceful lower chords. A moving lower line begins at measure 427 beneath sustained upper harmonies and chordal replies. The closing passage at measure 467 combines rising runs, descending figures, widely spaced bass notes and chords, and a firm final cadence.