Findings:
- Chopin Polonaise: Opus 26 no.1 & 2
- magnus opus
- Beethoven Piano Sonata No. 7
- Directory Opus
- Opus 67
- Daemon Opus (user)
- Opus Number
- Opus 40
- Si opus sit
- Penguin Opus (user)
- Moog Opus 3
- Chopin Polonaise: Opus 40 no.1 & 2
- Chopin Polonaise: opus 44
- Chopin Polonaise: Opus 53
- Chopin Polonaise: Opus 61 (polonaise-fantaisie)
- Opus IV
- Ronald Opus
- cybook opus
- Doctor Korgon's Robotic Opus
- opus infinitum
- Simon Magus
- The Magus
- Dark Magus
- the magus (user)
- Grand Magus
- Opus (user)
- Opus 3
- Magus
- Opus Dei
- Marmoratum opus
- Opus
- magnum opus
- Mr. Holland's Opus
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