Composition: O God, the Rock of Ages (Brewer, John Hyatt)
| Title | O God, the Rock of Ages |
| Creators | John Hyatt Brewer (composer) and Edward Henry Bickersteth (librettist) |
| Opus | |
| Instrumentation | mixed chorus and organ |
| Number of movements | — |
| Keys | E flat major |
| Composed | — |
| First published | 1907 |
| Dedication | Lafayette Avenue Presbyterian Church, Brooklyn, New York |
| Tempo markings | — |
| Metronome markings | — |
| Time signatures | — |
| Average duration (sec) | — |
| Number of measures | — |
| Composition types | Hymns |
| Language | English |
| Period | Early 20th century |
| View on IMSLP |  |
| Code |  |
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