| C. A. Bixio | 1 | |
| C. Barone | 1 | |
| C. De Antoni | 1 | 1964 |
| C. F. Richards | 1 | |
| C. Frank | 1 | 1956 |
| C. Kennedy Scott | 1 | |
| Carel Laôut | 1 | 1962 |
| XXXXXX | 1 | |
| C. Warwick Evans | 1 | |
| C. Whitaker-Wilson | 1 | 1926 |
| C. Whitaker-Wilson And Gatty Sellars | 1 | 1926 |
| C.A. Bunte | 1 | |
| C.C.M. Chamber Choir | 1 | 1994 |
| C.C.M. Percussion Ensemble | 1 | 1994 |
| C.I. La Trobe | 1 | 1961 |
| The C.W.S. (Manchester) Band | 1 | 1969 |
| Caleb Jarvis | 1 | 1968 |
| Caledonio Romero | 1 | 1995 |
| Calefax Reed Quintet | 1 | |
| Calgary Philharmonic Orchestra | 1 | 2003 |
| Calidore Quartet | 1 | 2018 |
| The California EAR Unit | 1 | 1991 |
| Callas / The Philharmonia Orchestra And Chorus | 1 | |
| Callas ∙ Albanese ∙ Savarese | 1 | |
| Calliope: A Renaissance Band | 1 | 1991 |
| Calvin Marsh | 1 | 1966 |
| Camarata Academica Des Salzburger Mozarteums | 2 | 1975 |
| Camarata Academica Salzburg | 1 | 1997 |
| Camarata Academica Salzburg, Ernst Hinreiner | 1 | 1997 |
| Camarata Labacensis | 1 | |
| Camarata Labacensis, Alexander Van Pitamic | 1 | 1993 |
| Camarata Labacensis, Kurt Redel | 1 | 1993 |
| Camargo Guarnieri | 1 | 2000 |
| Camargo M. Guarnieri | 1 | 1992 |
| Cambridge Classical Players | 1 | 1989 |
| Cambridge Girls' Choir | 1 | 1970 |
| The Cambridge Singers, Aurora Orchestra, John Rutter | 1 | 2012 |
| The Cambridge Singers, John Rutter | 8 | 1984 - 2012 |
| The Cambridge Singers | 8 | 1984 - 2008 |
| Cambridge University Musical Society | 1 | |
| Cambridge University Musical Society Chorus / Choir Of King's College, Cambridge / New Philharmonia Orchestra - Sir Philip Ledger | 1 | 2009 |
| Camerata Academica des Mozarteums | 1 | 1994 |
| Camerata Academica Des Mozarteums Salzburg | 4 | 1989 - 2002 |
| Camerata Academica Des Salzburger Mozarteum | 13 | 1958 - 2002 |
| Camerata Academica Des Salzburger Mozarteums / Bernhard Paumgartner | 1 | 1956 |
| Camerata Academica Des Salzburger Mozarteums, Géza Anda | 1 | 1995 |
| Camerata Academica Of The Saltzburg Mozarteum | 2 | 1962 - 1975 |
| Camerata Academica, A. Scholz | 1 | 1997 |
| Camerata Bern | 2 | 2011 - 2012 |
| Camerata Budapest | 1 | |
| Camerata Cassoviae | 6 | 2003 - 2004 |
| Camerata Labacensis | 3 | 1993 - 1999 |
| Camerata Labacensis, Alexander Von Pitamic | 1 | 1994 |
| Camerata Nova Chamber Orchestra | 1 | 1988 |
| Camerata Rhenania | 4 | 1990 - 1993 |
| Camerata Rhenania, Hanspeter Gmür | 1 | 1993 |
| Camerata Romana | 4 | 1991 |
| Camerata Romana, Alberto Lizzio | 1 | 1993 |
| Camerata Romana, Eugen Duvier | 1 | 1993 |
| Camerata Romana,Eugen Duvier | 1 | 1991 |
| Camerata Singers | 4 | 1964 - 2004 |
| Camerata Singers, New York Philharmonic, Pierre Boulez | 1 | 2004 |
| The Camerata Singers | 1 | 1965 |
| Camerata Slavonica | 1 | 1992 |
| Camerata Transsylvanica | 1 | 1995 |
| Camerata Würzburg | 2 | |
| Camile | 1 | 1975 |
| Camilla Williams | 1 | |
| Camille du Locle | 1 | 1978 |
| Camille Maurane | 1 | 1953 |
| Camille Saint-Saëns | 253 | 1910 - 2024 |
| Camillo Bargoni | 1 | |
| Camillo Storza | 1 | 1976 |
| Cammarata Academica Orch., Paumgartner | 1 | |
| Joachim Heinrich Campe | 1 | 1967 |
| Campoli | 3 | 1950 - 1954 |
| Campoli With Eric Gritton | 2 | 1955 |
| Campoli With The London Philharmonic Orchestra, Conducted By Eduard Van Beinum | 1 | 1954 |
| Campoli With The New Symphony Orchestra Conducted By Royalton Kisch | 1 | 1954 |
| Canadian Brass | 3 | 1974 - 1983 |
| The Canadian Brass With The Berlin Philharmonic Brass | 1 | 1984 |
| Cancionero De Palacio | 1 | |
| Candy Thompson | 1 | |
| Caniglia, Stignani, Gigli, Pinza, Chorus And Orchestra Of The Opera House, Rome, Tullio Serafin | 1 | 2001 |
| Canterbury Cathedral Choir | 1 | 2002 |
| Cantilena | 2 | 1992 |
| Cantilena Chamber Players | 1 | 1981 |
| Cantilena, Adrian Shepherd | 2 | 1988 - 1992 |
| Cantus Cölln, Konrad Junghänel | 1 | 2002 |
| Canty | 1 | 2010 |
| Caoline Trevor | 1 | 1994 |
| Capel Dixon | 1 | 1996 |
| Capella Academica Wien | 4 | 1973 - 1997 |
| Capella Antiqua München | 2 | 1967 - 1968 |
| Capella Breda | 1 | |
| Capella Caldara | 1 | 1991 |
| Capella Clementina | 1 | 1982 |
| Capella Istropolitana | 16 | 1988 - 2011 |
| Capella Istropolitana, Barry Wordsworth | 1 | 1994 |
| Capella Istropolitana, Bohdan Warchal | 2 | 1995 - 2011 |
| Capella Istropolitana, Richard Erdlinger | 1 | 2011 |
| Capella Istropolitana, Wolfgang Sobotka | 1 | 1991 |
| Capella Istropolitana/Adrian Leaper | 1 | 1994 |
| Capella Lipsiensis | 1 | 1981 |
| Capella Majellana Utrecht | 1 | |
| Capella Savaria | 3 | 1986 - 1997 |
| Capella Vocale, Hamburg | 1 | 1976 |
| Capilla De Musica De Montserrat | 1 | |
| Capilla De Musica De Montserrat, Dom David Pujol | 1 | |
| Capilla Y Escolania Del Monasterio De Montserrat | 1 | 1962 |
| Capital Virtuosi | 1 | 1991 |
| Jonathan Plowright, Capital Virtuosi | 1 | 1991 |
| Rita Manning, Briony Shaw, Capital Virtuosi | 1 | 1991 |
| Capitol Symphony Orchestra | 4 | 1961 |
| Capitol Symphony Orchestra, Carmen Dragon | 2 | 1958 |
| The Capitol Symphony Orchestra | 4 | 1958 - 1960 |
| Capitol Symphony Orchestra; Carmen Dragon | 1 | |
| Caplet String Quartet | 1 | 1995 |
| Cappella Augustana | 6 | |
| Cappella Augustana, Matteo Messori | 6 | |
| Cappella Coloniensis | 3 | 2009 |
| Cappella Mauriziana | 2 | |
| Cappella Mediterranea | 1 | |
| Cappella Mediterranea, Leonardo García Alarcón | 1 | 2022 |
| Cappella Mus. Della Basilica Di San Francesco In Assisi | 1 | 1961 |
| Cappella Musicale Della Basilica Di San Francesco In Assisi | 1 | 1959 |
| Cappella Musicale Enrico Stuart | 1 | |
| Cappella Musicale Enrico Stuart, Romeo Ciuffa | 1 | 2019 |
| Cappella Nova | 1 | 2011 |
| Cappella Romana, Alexander Lingas | 1 | 2011 |
| Captain Derek Taylor | 1 | |
| Cara Berridge | 1 | |
| Ezio Carabella | 1 | 1958 |
| The Cardinall's Musick | 4 | 1993 - 2011 |
| Cardot | 1 | 1995 |
| Carel van Leeuwen Boomkamp | 1 | 1976 |
| The Carice Singers | 1 | 2014 |
| Carin Levine | 1 | |
| Carl Bamberger | 21 | 1958 - 1971 |
| Carl Bohm | 6 | 1964 - 1968 |
| Carl Clewing | 3 | |
| Carl Czerny | 1 | |
| Carl Davis | 1 | 2011 |
| Carl Ditters von Dittersdorf | 6 | 1965 - 1995 |
| Carl Dolmetsch | 1 | 1994 |
| Carl Friedemann | 2 | 1974 |
| Carl Friedrich Abel | 1 | |
| Carl Friedrich von Sanders | 1 | 1972 |
| Carl Friedrich Zelter | 1 | |
| Carl Friedrich Zöllner | 3 | 1981 |
| Carl Garaguly | 1 | |
| Carl Gorvin | 2 | 1958 |
| Carl Haffner | 1 | |
| Carl Johan Holzhausen | 2 | 1956 - 1975 |
| Carl Katz | 2 | 1992 |
| Carl Leibl | 1 | 2004 |
| Carl Leopold Sjöberg | 1 | 1971 |
| Carl Loewe | 6 | 1956 - 2001 |
| Carl Maria Huber | 1 | |
| Carl Maria von Weber | 139 | 1920 - 2004 |
| Carl Maria von Weber, Charles Camille Saint-Saens, Alexis Emmanuel Chabrier, Johann Sebastian Bach, Peter Ilyich Tchaikovsky, Franz Von Suppe, Franz Liszt | 1 | |
| Carl Maria von Weber, Hector Berlioz, Johannes Brahms, Edvard Grieg, Albert Lortzing, Bedrich Smetana | 1 | |
| Carl Michael Ziehrer | 12 | 1951 - 1975 |
| Carl Michalski | 7 | 1961 - 1998 |
| Carl Michalski, Orchester Der Bayerischen Staatsoper | 1 | |
| Carl Millöcker | 29 | 1938 - 1992 |
| Carl Nielsen | 34 | 1953 - 2022 |
| Carl Orff | 36 | 1960 - 2011 |
| Carl Philipp Emanuel Bach | 36 | 1963 - 2014 |
| Carl Pini | 1 | 1989 |
| Carl Reinecke | 1 | 1981 |
| Carl Riegg | 1 | |
| Carl Ruggles | 1 | 1991 |
| Carl Rütti | 1 | 2014 |
| Carl Schuricht | 41 | 1952 - 2018 |
| Carl Seemann | 4 | 1962 - 1979 |
| Carl Seemann, Wolfgang Schneiderhan | 1 | 1962 |
| Carl Sjöberg | 1 | 1937 |
| Carl Stamitz | 4 | 1986 - 1995 |
| Carl Straußfeld | 1 | |
| Carl Tausig | 3 | 2010 - 2016 |
| Carl Teike | 1 | |
| Carl Weinrich | 3 | 1970 - 1980 |
| Carl Weinrich, Arthur Fiedler's Sinfionetta | 1 | 1980 |
| Carl Zeler | 1 | |
| Carl Zeller | 31 | 1928 - 1976 |
| Carl Ziehrer | 1 | 1972 |
| Carl, Nathalie and Arnold Dolmetsch | 1 | 1994 |
| Carl-August Bunte | 1 | 1990 |
| Carl-Axel Hallgren | 1 | 1975 |
| Carl-Gustof Holmgren | 1 | 1991 |
| Carla Pedrolli | 1 | 1976 |
| Carleton Etherington | 1 | |
| Oreste Carlini | 1 | 1958 |
| Carlisle Floyd | 2 | 1998 |
| Carlo Alberto Pizzini | 1 | |
| Carlo Bergonzi | 28 | 1958 - 1999 |
| Carlo Bergonzi, Orchester Der Accademia Di Santa Cecilia, Rom | 1 | |
| Carlo Bergonzi / Royal Philharmonic Orchestra London | 1 | |
| Carlo Bergonzi, Coro E Orchestra Del Teatro Alla Scala, Adriane Martino | 1 | 1999 |