| Chris Rea | 1 | 1 |
| Chris Watson | 4 | 1 |
| Chris Webby | 11 | 1 |
| Chris Whitley & The Bastard Club | 1 | 1 |
| Christian & The Hedgehog Boys | 1 | 1 |
| Christian Kjellvander | 1 | 1 |
| Christian Meaas Svendsen | 2 | 1 |
| Christian Poltéra | 27 | 1 |
| Christine Lauterburg | 1 | 1 |
| Christine McVie | 1 | 1 |
| Christo | 0 | 1 |
| Christoph Willibald Gluck | 109 | 1 |
| Christoph de Babalon | 1 | 1 |
| Christophe Beck | 0 | 1 |
| Christopher Larkin | 0 | 1 |
| Christopher Nightingale | 0 | 1 |
| Christopher O’Riley | 6 | 1 |
| Christy Moore | 27 | 1 |
| Chronic Disorder | 0 | 1 |
| Chronic Sick | 0 | 1 |
| Chuck Cleaver | 1 | 1 |
| Chuck Mangione | 18 | 1 |
| Chuck Person | 1 | 1 |
| Chypho | 1 | 1 |
| Chão Maior | 1 | 1 |
| Ciccone Youth | 1 | 1 |
| Cime | 1 | 1 |
| Cindy Woolf | 1 | 1 |
| Cinéma Vérité | 1 | 1 |
| Circle Takes the Square | 2 | 1 |
| Circles Around the Sun | 0 | 1 |
| Circuit des Yeux | 1 | 1 |
| Circulus | 5 | 1 |
| Cisco Houston | 2 | 1 |
| Citizen Cope | 1 | 1 |
| City Girl | 1 | 1 |
| City and Colour | 7 | 1 |
| City of Birmingham Symphony Orchestra | 142 | 1 |
| Civerous | 1 | 1 |
| Clan | 1 | 1 |
| Clap Your Hands Say Yeah | 6 | 1 |
| Clarence Carter | 23 | 1 |
| Clarence “Frogman” Henry | 2 | 1 |
| Clarissa Connelly | 1 | 1 |
| Clark Terry | 76 | 1 |
| Clau Aniz | 1 | 1 |
| Claude Debussy | 1,205 | 1 |
| Claude Desurmont | 2 | 1 |
| Claudio Lolli | 1 | 1 |
| Cleaners From Venus | 32 | 1 |
| Clem Snide | 1 | 1 |
| Clemencic Consort | 26 | 1 |
| Clifford Brown | 20 | 1 |
| Clifford Jordan | 31 | 1 |
| Clifford Jordan Quartet | 4 | 1 |
| Climax | 1 | 1 |
| Clinic | 10 | 1 |
| Clint Black | 1 | 1 |
| Clover-Lynn | 0 | 1 |
| Club Moral | 1 | 1 |
| Club Shy | 0 | 1 |
| Clémentine | 2 | 1 |
| Coachwhips | 5 | 1 |
| Coal Chamber | 4 | 1 |
| Cobra Copter | 1 | 1 |
| Coco & Clair Clair | 1 | 1 |
| CocoRosie | 1 | 1 |
| Code of Honor | 1 | 1 |
| Cody Jinks | 16 | 1 |
| Coin Locker Kid | 1 | 1 |
| Cold Sun | 1 | 1 |
| Cold War Kids | 10 | 1 |
| Colectivo Waykicha | 1 | 1 |
| Colin Hay Band | 1 | 1 |
| Colin Newman | 6 | 1 |
| Coline Rio | 1 | 1 |
| Collegium Vocale Gent | 95 | 1 |
| Colourbox | 1 | 1 |
| Coma Cinema | 1 | 1 |
| Combat 84 | 0 | 1 |
| Combatwoundedveteran | 1 | 1 |
| Combustible Edison | 1 | 1 |
| Comethazine | 4 | 1 |
| Commodores | 16 | 1 |
| Como Mamas | 1 | 1 |
| Company Flow | 2 | 1 |
| Conan | 1 | 1 |
| Conan Gray | 4 | 1 |
| Conchita Wurst | 2 | 1 |
| Concrete Blonde | 9 | 1 |
| Conductor Williams | 11 | 1 |
| Confide | 1 | 1 |
| Congo Natty | 1 | 1 |
| Connan Mockasin | 1 | 1 |
| Connie Converse | 0 | 1 |
| Connie Smith | 1 | 1 |
| Conor Oberst | 1 | 1 |
| Conquer Divide | 1 | 1 |
| Constantinople | 23 | 1 |
| Contrahouse | 1 | 1 |