This valuable reference work's principle feature is 600 monthly popularity charts that document January 1900 through December 1949. Gardner then displays these charts in a spreadsheet format so the reader can see how each song rose and fell during its period of popularity and how it compared with the other competing songs of its day. The remaining section contains a massive and comprehensive encyclopedia of all charted songs, including chart highlights, writers, shows, movies, records, and principal artists. An easy-to-read alphabetical index of song titles eliminates confusion from duplicated song titles or when a song re-charted as a revival or remake. Gardner's research reveals that music periodicals of the day tell a very different story from what has been, until now, recorded history. For example, contrary to popular belief, some enduring standards such as "St Louis Blues" and "Star Dust" never became big chart "hits," and some songs, enormously popular in their time, receive only scant mention in previously issued music history books and encyclopedias. Section 1: Alphabetical Index of Charted SongsSection 2: Monthly Top-20 Song ChartsSection 3: Semi-Monthly Top-20 Songs SpreadsheetsSection 4: Encyclopedia of Charted Songs