- Offenbach J. — Les Larmes de Jacqueline and Harmonie du soir (Kunzelmann)
- Offenbach J. — Musette
- Oginski M.K. — Polonaise in A minor
- Onslow G. — Sonata for cello or violin and piano №1 F-Dur Op.161
- Onslow G. — Sonata for cello and piano №2 c-moll, op.162
- Onslow G. — Sonata for violin or cello and piano №3 A-Dur, op.163
- Ornstein L. — 6 Preludes for Cello and Piano SO611
- Ornstein L. — Cello Sonata No.1 SO612
- Ornstein L. — Cello Sonata No.2 SO613
- Ornstein L. — Composition No.1 SO619
- Ornstein L. — Two Cello Pieces Op.33 SO620
