If you listen to K-pop, you must have known about singles, mini-albums, albums, and repackaged albums. What are they and how are they differences to each other?
A single is around 1-2 songs. Most K-pop idols debut with a single.
It is basically an album, but with a few tracks only. Some mini-albums contains 4–6 tracks composed of 4 songs and the instrumental version of the title track. This type of album is easier to produce and cheaper than a full album.
An album contains 12-15 songs, maybe more. Only popular idols produce full album as they take long time to record and are expensive.
They’re repackages of the original album. The album consists of the same songs from the previous album, but with 3-4 new ones. It uses a different concept and additional title tracks.