Proper noun
English Wikipedia has an article on:Great American SongbookWikipedia
Great American Songbook
The most important and most influential American popular songs of the 20th century, considered as a collection
My style of music is the great American songbook meets the pop world of the Seventies and Eighties. Barry Manilow
Few care more about the Great American Songbook than Dylan. Source: Internet
The late 1950s also saw Ella Fitzgerald record her Duke Ellington Songbook (Verve) with Ellington and his orchestra—a recognition that Ellington's songs had now become part of the cultural canon known as the ' Great American Songbook '. Source: Internet
The repertoire included many bebop mainstays, standards from the Great American Songbook and the pre-bop era, and some traditional tunes. Source: Internet