O
- Charles Wilfred Orr
- Carmen Fantasy for cello and piano
- Leo Ornstein
- Cello Sonata No.1, Op. 52 (1918)
- Cello Sonata No.2 (1920)
Peter van Onna Geographies: Kyoto Anmintaku for Cello and Piano
Read more about this topic: List Of Compositions For Cello And Piano