Long-playing records

Long-playing records were developed to rotate at a slower speed of 33⅓ times a minute, allowing much more music to be stored on a single record. This innovation enabled entire symphonies to be placed on one record, significantly enhancing music listening experience.
 Peter Carl Goldmark United States 1948 Long-playing records

Long-playing records were developed to rotate at a slower speed of 33⅓ times a minute, allowing much more music to be stored on a single record. This innovation enabled entire symphonies to be placed on one record, significantly enhancing music listening experience.