#singer__vocalist__vocalizer__vocaliser  a person who sings
  supertype:  #instrumentalist__musician__player  someone who plays a musical instrument (as a profession)
  instance:  #Pearl_Mae_Bailey  #Maurice_Chevalier  #Marlene_Dietrich  #Bob_Dylan  #Ella_Fitzgerald  #Judy_Garland  #Julio_Iglesias  #Mahalia_Jackson  #Michael_Joe_Jackson  #Al_Jolson  #Janis_Joplin  #Riley_B_King  #Sir_Harry_MacLennan_Lauder  #Madonna_Louise_Ciccone  #Robert_Nesta_Marley  #Dean_Martin  #Ethel_Merman  #Roy_Orbison  #Edith_Piaf  #Paul_Bustill_Robeson  #Paul_Simon  #Bessie_Smith  #Kathryn_Elizabeth_Smith  #Barbra_Joan_Streisand  #Sarah_Vaughan  #Ethel_Waters  #Tammy_Wynette
  subtype:  #alto.singer  a singer whose voice lies in the alto clef
     subtype:  #countertenor  a male singer with a voice above that of a tenor
  subtype:  #baritone__barytone  a male singer
  subtype:  #basso__bass  an adult male singer with the lowest voice
  subtype:  #canary  (informal) a female singer
  subtype:  #caroler__caroller  a singer of carols
  subtype:  #castrato  a male singer who was castrated before puberty and retains a soprano or alto voice
  subtype:  #chorister  a singer in a choir
     subtype:  #choirboy  a boy who sings in a choir
  subtype:  #contralto  a woman singer having a contralto voice
     instance:  #Marian_Anderson__Anderson  #Ernestine_Schumann-Heink__Schumann-Heink
  subtype:  #crooner__balladeer  a singer of popular ballads
     instance:  #Harry_Lillis_Crosby__Crosby__Bing_Crosby  #Francis_Albert_Sinatra__Sinatra__Frank_Sinatra
  subtype:  #folk_singer__jongleur__minstrel__poet-singer__troubadour  a singer of folk songs
     instance:  #Woodrow_Wilson_Guthrie__Guthrie__Woody_Guthrie  #Peter_Seeger__Seeger__Pete_Seeger
  subtype:  #hummer  a singer who produces a tune without opening the lips or forming words
  subtype:  #lieder_singer  a singer of lieder
  subtype:  #madrigalist  a singer of madrigals
  subtype:  #opera_star__operastar__operatic_star  singer of lead role in an opera
     subtype:  #diva__prima_donna  a distinguished female operatic singer; a female operatic star
  subtype:  #rock_star  a famous singer of rock music
     instance:  #Charles_Edward_Berry__Berry__Chuck_Berry  #William_John_Clifton_Haley_Jr.__Haley__Bill_Haley  #George_Harrison__Harrison  #Buddy_Holly__Holly__Charles_Hardin_Holley  #Michael_Philip_Jagger__Jagger__Mick_Jagger  #John_Lennon__Lennon  #Jerry_Lee_Lewis__Lewis  #Sir_James_Paul_McCartney__McCartney__Paul_McCartney  #James_Douglas_Morrison__Morrison__Jim_Morrison  #Elvis_Aron_Presley__Presley__Elvis_Presley  #Ringo_Starr__Starr__Richard_Starkey
  subtype:  #songster  a person who sings
     subtype:  #songstress  a woman songster (especially of popular songs)
  subtype:  #soprano  a female singer
     subtype:  #coloratura_soprano__coloratura  a lyric soprano who specializes in coloratura vocal music
        instance:  #Maria_Meneghini_Callas__Callas__Maria_Callas  #Dame_Nellie_Melba__Melba__Helen_Porter_Mitchell
     subtype:  #mezzo__mezzo-soprano  a soprano with a voice between soprano and contralto
     instance:  #Eileen_Farrell__Farrell  #Jenny_Lind__Lind__Swedish_Nightingale  #Marta_Brigit_Nilsson__Nilsson__Brigit_Nilsson  #Jessye_Norman__Norman  #Mary_Leontyne_Price__Price__Leontyne_Price  #Beverly_Sills__Sills  #Dame_Joan_Sutherland__Sutherland__Joan_Sutherland  #Renata_Tebaldi__Tebaldi  #Dame_Kiri_Janette_Te_Kanawa__Te_Kanawa__Dame_Kiri_Te_Kanawa  #Helen_Traubel__Traubel
  subtype:  #tenor  an adult male with a tenor voice
     instance:  #Enrico_Caruso__Caruso  #Placido_Domingo__Domingo__domingo  #John_McCormick__McCormick  #Lauritz_Lebrecht_Hommel_Melchior__Melchior__Lauritz_Melchior  #Luciano_Pavarotti__Pavarotti
  subtype:  #thrush.singer  (informal) a woman who sings popular songs
  subtype:  #torch_singer__torchsinger  a singer (usually a woman) who specializes in singing torch songs
  subtype:  #voice.singer  (metonymy) a singer; "he wanted to hear trained voices sing it"
  subtype:  #yodeller  a singer who changes register rapidly (popular is Swiss folk songs)

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