- Odhecaton & Paolo da Col
- Ola Gjeilo
- Ola Gjeilo & 12 Ensemble
- Ola Gjeilo, The Choir of Royal Holloway & 12 Ensemble
- Olesya Petrova, Francesco Meli, Dmitry Belosselskiy, St. Petersburg Philharmonic Orchestra & Yuri Te...
- Olga Scheps
- Oliver Ringelhahn, Marie McLaughlin, Ildebrando d'Arcangelo, Bo Skovhus, Franz-Josef Selig, Wiener P...
- Oliver Zeffman & Academy of St Martin in the Fields
- Oliver Zeffman, Academy of St Martin in the Fields & Viktoria Mullova
- Olivia Belli
- Olivia Belli, Federico Perpich & Luca Mengoni
- Olivia Belli, Luca Mengoni & Federico Perpich
- Olivier Latry
- Oneohtrix Point Never
- Only Men Aloud
- Ophélie Gaillard, Charles Gonzales, Morphing Chamber Orchestra & Frédéric Chaslin
- Ophélie Gaillard, Morphing Chamber Orchestra & Frédéric Chaslin
- Orava Quartet
- Orchestra del Maggio Musicale Fiorentino & Zubin Mehta
- Orchestra of the Age of Enlightenment & Vladimir Jurowski
- Orchestra of the Age of Enlightenment, Christopher Hogwood & Sarah Connolly
- Orchestra of the Royal Opera House & Antonio Pappano
- Orchestra of the Royal Opera House & Barry Wordsworth
- Orchestra of the Royal Opera House & Sir Charles Mackerras
- Orchestra of the Royal Opera House & Sir Colin Davis
- Orchestra of the Royal Opera House, Andris Nelsons & Inna Dukach
- Orchestra of the Royal Opera House, Andris Nelsons, Hibla Gerzmava & Teodor Ilincăi
- Orchestra of the Royal Opera House, Antonio Pappano & Erwin Schrott
- Orchestra of the Royal Opera House, Antonio Pappano & Miah Persson
- Orchestra of the Royal Opera House, Antonio Pappano, Joseph Calleja & Renée Fleming
- Orchestra of the Royal Opera House, Antonio Pappano & Miah Persson
- Orchestra of the Royal Opera House, Antonio Pappano, Joseph Calleja & Renée Fleming
- Orchestra of the Royal Opera House, Barry Wordsworth & The Royal Ballet
- Orchestra of the Royal Opera House, Covent Garden & Plácido Domingo
- Orchestre de l'Opéra de Paris & Maria Callas
- Orchestre de Paris & Herbert von Karajan
- Orchestre de Paris & Pierre Boulez
- ORF Vienna Radio Symphony Orchestra, Tianwa Yang & Darrell Ang
- Orla Boylan & Gennadi Rozhdestvensky
- Orli Shaham, David Robertson, St Louis Symphony Orchestra & Elaine Sisman
- Orquesta Sinfónica de Castilla y León
- Orquestra Cordas do Iguaçu
- Orquestra Gulbenkian & Selma Uamusse
- Oskar Jezior & Szymon Komasa