Work · 1830s CEÉtude Op. 25, No. 9Also known asButterfly studyButterfly étudeEstudi op. 25Estudio Op. 25, n.º 9Etiuda op. 25 nr 9Etude for piano No. 21 in G flat major, Op. 25/9, C. 34archival plate · Étude Op. 25, No. 9 · placeholderThis entry is a stub. The Library is awakening — a longer account is being written.Connected to3 links to entries not yet ingested in the Library.