- Caffe concerto strauss
- Camerata Bern
- Camerata du Léman
- Camerata Lipsiensis
- Camerata Musica Limburg
- Camerata Woodwind Quintet
- Cameron Carpenter
- Camilla Nylund
- Camille
- Camille Maurane
- Camille Saint-Saëns
- Camille Schnoor
- Camille Thomas
- Cantus Novus Wien
- Capella Istropolitana
- Capella Savaria
- Capitol Symphony Orchestra
- Cappella Amsterdam
- Capriccio Baroque Orchestra
- Cariòn
- Carl Bamberger
- Carl Czerny
- Carl Michalski
- Carl Schuricht
- Carl Wolf
- Carla Martinis
- Carlin Chimorito
- Carlo Balzaretti
- Carlo Colombara
- Carlo Grante
- Carlo Jans
- Carlo Levi Minzi
- Carlo Marchione
- Carlo Maria Giulini
- Carlo Pantelli
- Carlo Zecchi
- Carlo-Maria Giulini
- Carlos Alarcón y su grupo Los Genios
- CARLOS JACOB
- Carlos Marquez
- Carlton Cooley
- Carmelo Corrado Caruso
- Carmen Dragon
- Carmina Quartet
- Carmine Miranda
- Carol Comune
- Carol Vaness
- Carole Carniel
- Carolin Widmann
- Caroline Clemmow
- Caroline Fischer
- Caroline Melzer
- Caroline Schnitzer
- Carolyn Sampson
- Carpe Diem String Quartet
- Carson Becke
- Casal Quartett
- Caspar da Salo Quartet
- Cassilly
- Castle Chamber Orchestra
- Catriona Morison
- Cecil Aronowitz
- Cecilia Bernardini
- Celiny Chailley-Richez
- Cesare Cantieri
- Cesare Siepi
- Cesare Valletti
- Chamber Choir of Minsk-Belarus
- Chamber Orchestra of Europe
- Champagnement Votre
- Charles Callahan
- Charles Dutoit
- Charles Münch
- Charles Owen
- Charles Panzéra
- Charles Rosekrans
- Charles Rosen
- Charles Shaffer
- Chas Coberly
- Chen Xue-Hong
- Cheryl Studer
- Chia-Hua Hsu
- Chiara Bertoglio
- Chiaroscuro Quartet
- Chicago Symphony Chorus
- Chicago Symphony Orchestra
- Chiharu Aizawa
- Chiyan Wong
- Chiyo Takeda
- Chizuru Nakajima
- Chloë Hanslip
- Choeur de chambre les éléments
- Choeur de l'Opéra de Lyon
- Choeur de L'Opéra National de Lyon
- Choeur de l'Orchestre de Paris
- Choeur Minine de Moscou
- Choeur Sacrum
- Choeurs Raymond Saint-Paul
- Choir of Gonville & Caius College, Cambridge
- Choir of Gonville and Caius College, Cambridge
- Choir of King's College, Cambridge
- Choir of New College Oxford
- Choir of St. John's College, Cambridge
- Chong Park
- Chopin's Vanguard
- Chor der Bayerischen Staatsoper
- Chor der Bayreuther Festspiele
- Chor der Oper Graz
- Chor Der Städtischen Oper Berlin
- Chor des Bayerischen Rundfunks
- Chor des Österreichischen Rundfunks
- Chor und Orchester der Berliner Städtische Oper
- Chor und Orchester des Bayreuther Festspielhauses
- Chor und Orchester von Nürnberg
- Chorus of the Bolshoi Theatre
- Chorus of the Royal Opera House, Covent Garden
- Chorus Viennensis
- Chouchane Siranossian
- Christa Ludwig
- Christel Goltz
- Christian Chamorel
- Christian Du Plessis
- Christian Ernst Graf
- Christian Erny
- Christian Fellner
- Christian Ferras
- Christian Gerhaher
- Christian Immler
- Christian Ivaldi
- Christian Leotta
- Christian Li
- Christian Ostertag
- Christian Poltera
- Christian Schmitt
- Christian Svarfvar
- Christian Tasser
- Christian Tetzlaff
- Christian Thielemann
- Christian Zacharias
- Christiane Behn
- Christiane Mathe
- Christiane Oelze
- Christina Fassbender
- Christine Schweitzer
- Christoph Eschenbach
- Christoph Hammer
- Christoph Henkel
- Christoph Karlmann
- Christoph Keller
- Christoph Prégardien
- Christoph von Dohnányi
- Christoph-Mathias Mueller
- Christophe Coin
- Christophe Rousset
- Christophe Sirodeau
- Christophe Sturzenegger
- Christophe Vautier
- Christopher Atzinger
- Christopher Hogwood
- Christopher Kolmatycki
- Christopher Park
- Christopher van Kampen
- Chuang Ya-Fei
- Chubu Philharmonic Orchestra
- Chung Trio
- Chœur Charles Pernès
- Chœur de Chambre de Namur
- Chœur du Concert Spirituel
- Chœur du Grand Théâtre de Genève
- Cianfranco Bortolato
- Cihat Aşkın
- Cinzia Forte
- City of Birmingham Symphony Chorus
- City of Birmingham Symphony Orchestra
- Claire Chevallier
- Claire Désert
- Claire Huangci
- Claire-Marie Le Guay
- Clara Haskil
- Clara Rodriguez
- Clara-Jumi Kang
- Clare Gormley
- Classical Coterie
- Claude Devos
- Claude Helffer
- Claude Maury
- Claudi Arimany
- Claudia Marie-Thérèse Hasslinger
- Claudia Schellenberger
- Claudine Simon
- Claudio Abbado
- Claudio Ambrosini
- Claudio Arrau
- Claudio Bohórquez
- Claudio Colombo
- Claudio Scimone
- Claudy Mas-Michel
- Claus Peter Flor
- Clemens Kraus
- Clemens Krauss
- Cleveland Orchestra
- Clide Molta
- Clifford Curzon
- Clément Lefebvre
- Clémentine Decouture
- Coburn Orchestra
- Cold Madam
- Cole Smith
- Colin Balzer
- Colin Davis
- Colin Lawson
- Coline Jaget
- Collegium Vocale Gent
- Collegiûm Mûsicûm Bergen Choir
- Colm Feore
- Cologne New Philharmonic
- Cologne New Philharmonic Orchestra
- Colorado String Quartet
- Colorado Symphony Chorus
- Colorado Symphony Orchestra Chorus
- Columbia Symphony Orchestra
- Compagnie Les Brigands
- Comptesso Vocale “Musica Laus” Gruppo Vocale “Cantus Firmus”
- Concert Arts Symphony Orchestra
- Concert-Masters of New York
- Concertgebouworkest
- Concerto Copenhagen
- Concerto de Bassus
- Concita Zaccarini
- Connor Queenin
- Connor Yates
- Consortium Classicum
- Constantin Silvestri
- Copenhagen Philharmonic Orchestra
- Cor de Groot
- Corbin Beisner
- Corinne Kloska
- Corinne Morris
- Cornelia Lanz
- Coro Del Teatro Alla Scala