Album

An album is a collection of audio recordings issued on a specific medium.

These collections can be found on vinyl, compact discs (CDs), or audio tapes like cassettes. Today, albums are also widely available in digital formats for streaming. The album served as the dominant unit for music consumption from the mid-1960s until the early 21st century. This period is often called the album era by industry professionals. Listening to an album allows people to experience a cohesive set of works.

Creating an album is a complex process that often occurs in a recording studio. These studios are specifically built to absorb sound and eliminate reverberation. This helps engineers during the mixing stage, where different parts are brought together. Recording usually requires several takes of each track to achieve the desired quality. Some artists use multitrack recording to record different parts at separate times. They might even use headphones to listen to earlier parts while recording new ones. If a recording is done in one take without overdubbing, it is called a "live" recording.

Albums are organized into individual sections called tracks. A track is a single song or an instrumental recording. On a vinyl record, tracks are identified by physical grooves. On a compact disc, the track number is indexed for easy jumping. When a track shares the same name as the album, it is called the title track. Some albums include extra pieces known as bonus tracks. These might include live recordings, demos, or B-sides used for marketing.

The history of the word "album" traces back to ancient Rome. In that time, an album was a white board used for public notices. Later, the term referred to books of blank pages for collecting sketches or photos.

In the early 20th century, music albums resembled these photo books. They contained several 78 rpm records bound together in a book format. Each side of a 78 rpm record held only about three minutes of sound. By 1938, companies began hiring graphic designers to create colorful covers. This turned the album cover into an important selling feature.

Technology changed the way music was packaged and played. In 1948, Columbia Records introduced the long-playing (LP) vinyl record.

An LP could hold about 22 minutes of music per side. This format became the standard for the album for many years. Other formats emerged, such as the 8-track tape, which was used from 1965 to 1983.

The cassette tape gained popularity through the 1970s and peaked in the late 1980s. By the early 2000s, the compact disc became the primary distribution method. Now, digital streaming platforms like Spotify allow for global access to albums.

There are no universal rules for how long an album must be. However, different organizations have specific criteria. In the United States, Grammy Award rules require an album to have at least five tracks and 15 minutes of music, or 30 minutes with no track minimum. In the United Kingdom, an album must have more than four tracks or last over 25 minutes. Some releases are shorter and are called EPs or mini-albums. Conversely, some albums are very long. The album Dopesmoker by the band Sleep contains only one track, but it lasts over 63 minutes. If a collection is too large for one disc, it may be released as a double or triple album.

Albums connect to many different aspects of culture and technology. They involve graphic design through cover art and liner notes. Liner notes provide lyrics, artist biographies, or musical analysis. In classical music, these notes might include librettos. The way we consume albums reflects shifts in global technology and economy. The transition from physical objects to digital streams has made listening cheaper and more convenient. This evolution shows how humans constantly find new ways to share and preserve sound.