It seems to me that the excerpt to which Dancingthrulife2 links does more to disprove the ridiculous notion that a brilliant composer like George Gershwin stole four notes from a pit musician and turned them into the entirety of "I Got Rhythm." Clearly, this passage is the source for Wolfe's dialogue (it seems to my memory to be stated almost verbatim in the show - talk about plagiarism), but it's utterly ridiculous - mainly because it's musically idiotic.
The book claims that the purloined notes are C#-D#-F#-G#; those notes would be the notes for the lyric "I got rhythm" (and "I got my man" and others), but only when the song is in the key of F#, which is not a key often employed; in fact, most musicians would just use the enharmonic key of Gb, which is easier (but not easy) to read. (In Gb, the notes would be Db-Eb-Gb-Ab.)
In solfège, the progression is Sol La Do Re, 4 simple ascending notes. The rhythm is a blank downbeat, three dotted quarter notes, and an eighth note tied to a half note. It's astonishingly simple; not a complex progression worth stealing - AND it's merely a fraction of a full melody, sans harmonics.
Gershwin had been contributing syncopated/jazz songs to Broadway shows since 1918, three years before Shuffle Along (Blake's first show score - prior to that he was a performer on the vaudeville circuit).
So yes, the story has been made (up), and repeated; but there's absolutely no reason to put any credence in it.
Updated On: 9/30/16 at 01:25 PM