| Title | The O'Brien Girl |
| Alternative title | A Musical in Two Acts |
| Creators | Louis Achille Hirsch, composer Otto Harbach, librettist Frank Mandel, librettist |
| Opus | — |
| Instrumentation | voices and orchestra |
| Number of movements | 2 |
| Keys | E flat major |
| Composed | — |
| First published | 1921 |
| Dedication | — |
| Tempo markings | — |
| Metronome markings | — |
| Time signatures | — |
| Average duration (sec) | — |
| Number of measures | — |
| Composition types | Musicals |
| Language | English |
| Period | Early 20th century |
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View |
| Code |
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| Details | Section | Arranged for | Arranger |
|---|---|---|---|
| View | Learn to Smile | small orchestra | Robert Russell Bennett |
| Details | Section | Type | Publisher | Date | File (click to view) |
|---|---|---|---|---|---|
| View | Complete | vocal score | Victoria Music Publishing Company | — | I Wonder How I Ever Passed You By Learn to Smile |
| View | Learn to Smile | Arrangement for small orchestra |
Victoria Publishing Corp. | 1921 | Piano-Conductor Score and Complete Parts |
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