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Recorded Sound Research Center (Motion Picture, Broadcasting and Recorded Sound Division)
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Locating Sound Recordings

The Recorded Sound Section of the Library of Congress maintains a collection of nearly 3,500,000 recordings, with new acquisitions averaging from 75,000 to 100,000 yearly. What follows is an estimate of the percentage of certain categories of material to be found in SONIC, the percentage available in the Library's main catalog (the Integrated Library System or ILS), and the pecentage available by contacting the Section's reference staff. Please note that field recordings made by the Library are excluded from this matrix and researchers interested in this material should contact the Folklife Reading Room.


MUSICAL RECORDINGS

Type of Recording % in ILS % in SONIC

% Available by contacting
Reference Staff
Pre-1948 commercial recordings 1 50 49
Unreleased broadcast recordings 1 80 19
Commercially released broadcast recordings 33 33 33
Performers private collections 40 50 10
Audio cassette and CD-R copyright deposits 5 95  
45 rpm discs 1 99  
LPs 50   50
Newport Jazz Festival (unpublished)   100  
Newport Jazz Festival (commercial) 100    
Library of Congress Music Division Concerts 100    

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SPOKEN WORD RECORDINGS

Type of Recording % in ILS % in SONIC % Available by contacting
Reference Staff
Radio programs 5 70 25
Notable individuals 33 43 23
Significant historical events 33 33 33
NBC Radio   90 10
WOR AM Radio (Mutual) 50   50
BBC     100
National Public Radio 5   95
Armed Forces Radio and Television Service 2 15 83
Literary readings 70 20 10
WWII Marine Corps combat recordings   100  
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  Home >> About the Reference Center
  The Library of Congress >> Researchers
  April 28, 2016
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