LP record (long play), or 33 1⁄3
vinyl record, is a
gramophone record format introduced by
Columbia Records in 1948.
 It was adopted by the record industry as a standard format for the "album". Apart from relatively minor refinements and the important later addition of
stereophonic sound capability, it has remained the standard format for vinyl albums. The term "album" had been carried forward from the early nineteenth century when it had been occasionally used in the titles of some classical music sets, such as
Album for the Young Opus 68, a set of 43 short pieces.
78rpm records came out, the popular 10-inch disc could only hold about three minutes of sound per side, so almost all popular recordings were limited to around three minutes in length.
 Classical-music and spoken-word items generally were released on the longer 12-inch 78s, about 4–5 minutes per side. For example, in 1924,
George Gershwin recorded a drastically shortened version of the seventeen-minute
Rhapsody in Blue with
Paul Whiteman and His Orchestra. It was released on two sides of Victor 55225 and ran for 8m 59s.
Deutsche Grammophon had produced an album for its complete recording of the opera
Carmen in 1908. German record company
Odeon released the
Nutcracker Suite by
Tchaikovsky in 1909 on 4 double-sided discs in a specially designed package.
 This practice of issuing albums does not seem to have been widely taken up by other record companies for many years; however,
HMV provided an album, with a pictorial cover, for the 1917 recording of
The Mikado (
Gilbert & Sullivan).
By about 1910, bound collections of empty sleeves with a
leather cover, similar to a photograph album, were sold as record albums that customers could use to store their records (the term "record album" was printed on some covers). These albums came in both 10-inch and 12-inch sizes. The covers of these bound books were wider and taller than the records inside, allowing the record album to be placed on a shelf upright, like a book, suspending the fragile records above the shelf and protecting them. In the 1930s, record companies began issuing collections of 78 rpm records by one performer or of one type of music in specially assembled albums, typically with artwork on the front cover and liner notes on the back or inside cover. Most albums included three or four records, with two sides each, making six or eight compositions per album. When the 12-inch vinyl LP era began in 1949, the single record often had the same or similar number of tunes as a typical album of 78s, and was still often referred to as an "album", as they still are today.
 With the advent of the
long-playing record (LP), a 33 1⁄3
vinyl disc introduced by
Columbia Records in 1948,
 the term was adapted to a single disk which held as much programming as at least four 78s, obscuring the metaphor. The term was extended to other recording media such as
Compact audio cassette,
MiniDisc, and digital albums, as they were introduced.
 As part of a trend of shifting sales in the
music industry, some observers feel that the early 21st century experienced the
death of the album.