The Real Book can refer to any of a number of popular compilations of lead sheets for jazz tunes, but is generally used to refer to Volume 1 of an underground series of books transcribed and collated by students at Berklee College of Music during the 1970s.[citation needed] It got its name to distinguish it from the widely available fake books which printed only chords and lyrics of standard songs, to avoid copyright issues. The Real Book included melody lines, thus infringing music copyright, and the older versions were pirated - that is unlicensed - publications that paid no royalties to song authors. In 2004, Hal Leonard published a licensed edition, which pays royalties to song authors.