When it was first published, Alec Wilder's American Popular Song quickly became a classic and today it remains essential reading for countless musicians, lovers of American Song, and fans of Alec Wilder.

Now, in a 50th anniversary edition, popular music scholar Robert Rawlins brings the book fully up-to-date for the 21st century. Whereas previous editions featured only piano scores, the format has been changed to lead sheet notation with lyrics, making it accessible to a wider readership. Rawlins has also added more than sixty music examples to help complete the chapter on Irving Berlin.

One of the most fascinating features of the original edition was Wilder's inventive use of language, often revealing his strong and sometimes irreverent opinions. Wilder's prose remains relatively unaltered, but footnotes have been provided that clarify, elucidate, and even correct. Moreover, a new chapter has been added, discussing fifty-three songs by numerous composers that Wilder might have well included but was not able to. Songs by Ann Ronnell, Fats Waller, Jule Styne and many others are capped off with an examination of ten of Wilder's own songs.