| Copenhagen Art Ensemble | 0 | 0 |
| Copenhagen Chamber Orchestra | 0 | 0 |
| Copenhagen Classic | 0 | 0 |
| Copenhagen Collegium Musicum | 6 | 0 |
| Copenhagen Cornetts & Sackbutts | 0 | 0 |
| Copenhagen Oratorio Choir | 0 | 0 |
| Copenhagen Phil – hele Sjællands Symfoniorkester | 14 | 0 |
| Coppice | 0 | 0 |
| Coppice Halifax | 0 | 0 |
| Copywrite | 0 | 0 |
| Copywrong | 0 | 0 |
| Cor Bakker | 0 | 0 |
| Cor Fuhler | 0 | 0 |
| Cor Kee | 2 | 0 |
| Cor Lieder Càmera | 3 | 0 |
| Cor Madrigal | 1 | 0 |
| Cor de Groot | 2 | 0 |
| Cor de Lux | 0 | 0 |
| Cor de la Generalitat Valenciana | 0 | 0 |
| Cor.Ece | 0 | 0 |
| Cora Canne-Meijer | 1 | 0 |
| Coral Morphologic | 0 | 0 |
| Coral Paulistano Mário de Andrade | 0 | 0 |
| Coral Sant Jordi | 0 | 0 |
| Corale Laurenziana "Giocondo D'Amato" | 0 | 0 |
| Corale Valdera | 0 | 0 |
| Coralie Fischer | 0 | 0 |
| Coraline's Collapse | 0 | 0 |
| Cord Garben | 20 | 0 |
| Corda Piano Trio | 0 | 0 |
| Cordaria | 0 | 0 |
| Cordelia Palm | 1 | 0 |
| Cordevento | 0 | 0 |
| Cordyceps | 0 | 0 |
| Cordyceps Corpse | 0 | 0 |
| CoreLeoni | 0 | 0 |
| Corella | 0 | 0 |
| Corelli Chamber Orchestra | 0 | 0 |
| Corentin Brasart | 0 | 0 |
| Corey Cerovsek | 4 | 0 |
| Corey Fonville | 0 | 0 |
| Corey Fuller | 0 | 0 |
| Corey Hamm | 0 | 0 |
| Corey Kent | 0 | 0 |
| Cori Spezzati | 1 | 0 |
| Corigliano Quartet | 0 | 0 |
| Corigniani | 0 | 0 |
| Corin Long | 0 | 0 |
| Corina Marti | 0 | 0 |
| Corine Durous | 0 | 0 |
| Corinne Chapelle | 0 | 0 |
| Corinne Curry | 1 | 0 |
| Corinne Kloska | 0 | 0 |
| Corinne Morris | 0 | 0 |
| Coriún Aharonián | 1 | 0 |
| Corky Siegel | 4 | 0 |
| Corlyx | 0 | 0 |
| Cornel Frey | 2 | 0 |
| Cornel Stavru | 0 | 0 |
| Cornel Trăilescu | 0 | 0 |
| Cornelia | 0 | 0 |
| Cornelia Horak | 3 | 0 |
| Cornelia Kallisch | 6 | 0 |
| Cornelia Löscher | 0 | 0 |
| Cornelia Oncioiu | 0 | 0 |
| Cornelia Samuelis | 0 | 0 |
| Cornelia Vasile | 0 | 0 |
| Cornelia Winter | 0 | 0 |
| Cornelis Dopper | 0 | 0 |
| Cornelis Opthof | 1 | 0 |
| Cornelis Schuyt | 0 | 0 |
| Cornelis de Bondt | 0 | 0 |
| Corneliu Fănățeanu | 0 | 0 |
| Corneliu Murgu | 0 | 0 |
| Cornelius Cardew | 0 | 0 |
| Cornelius Claudio Kreusch | 0 | 0 |
| Cornelius Dufallo | 0 | 0 |
| Cornelius Freundt | 0 | 0 |
| Cornelius Hauptmann | 9 | 0 |
| Cornelius Hummel | 0 | 0 |
| Cornelius Lewenberg | 0 | 0 |
| Cornelius Meister | 16 | 0 |
| Cornelius Obonya | 1 | 0 |
| Cornelius Schwehr | 1 | 0 |
| Cornell Campbell | 0 | 0 |
| Cornell MacNeil | 8 | 0 |
| Cornetto | 0 | 0 |
| Coro | 1 | 0 |
| Coro "Gottardo Tomat" di Spilimbergo | 0 | 0 |
| Coro Casa da Música | 0 | 0 |
| Coro Cetra | 1 | 0 |
| Coro Città di Como | 0 | 0 |
| Coro Claudio Monteverdi | 0 | 0 |
| Coro Costanzo Porta | 0 | 0 |
| Coro Del Teatro Dell'Opera Di Salerno | 1 | 0 |
| Coro Donizetti Opera | 2 | 0 |
| Coro EIAR | 1 | 0 |
| Coro Ghislieri | 1 | 0 |
| Coro Gli Amici Cantori | 0 | 0 |
| Coro Gulbenkian | 19 | 0 |