| Title | The Firefly | 
| Creators | Rudolf Friml (composer) and Otto Harbach (librettist) | 
| Opus | |
| Instrumentation | voices, mixed chorus and orchestra | 
| Number of movements | 3 | 
| Keys | — | 
| Composed | 1912 | 
| First published | 1912 | 
| Dedication | — | 
| Tempo markings | — | 
| Metronome markings | — | 
| Time signatures | — | 
| Average duration (sec) | — | 
| Number of measures | — | 
| Composition types | Operettas | 
| Language | English | 
| Period | Romantic | 
| View on IMSLP |  | 
| Code |  | 
(No sections)
| Details | Section | Arranged for | Arranger | 
|---|---|---|---|
| view | Selections | piano | Homer Newton Bartlett | 
| view | Sympathy (Act II, No.10) | theater orchestra | — | 
| view | Sympathy (Act II, No.10) | piano | Andor Pintér | 
| Details | Section | Type | Publisher | Date | File | 
|---|---|---|---|---|---|
| view | Complete | vocal score | Schirmer | 1912 | Complete Score (color) · view Complete Score (mono) · view | 
| view | Complete | vocal score | Schirmer | 1912 | Complete Score · view Color Cover · view | 
| view | Complete | selections,vocal score | Schirmer | 1912 | Love Is Like a Firefly (Act I, No.4) · view When a Maid Comes Knocking at Your Heart (Act II, No.15) · view | 
| view | Complete | Arrangement for piano | Schirmer | 1912 | Complete Score · view | 
| view | Sympathy (Act II, No.10) | Arrangement for theater orchestra | Schirmer | 1920 | Incomplete Parts · view | 
| view | Sympathy (Act II, No.10) | Arrangement for piano | Schirmer | 1913 | Complete Score · view | 
(No recordings)
©2025 David P. Anderson