Conversation so far:
What is Tin Pan Alley?
The name originally referred to a specific place: West 28th Street between Fifth and Sixth Avenues in the Flower District of Manhattan.
What did George Gershwin do in Tin Pan Alley?
George Gershwin found his first job as a song plugger.
What is a song plugger?
A song plugger or song demonstrator was a vocalist or piano player employed in the early 20th century to sell new sheet music.
Did George Gershwin do broadway shows?
George Gershwin began his career as a song plugger but soon started composing Broadway theater works with Buddy DeSylva and his brother Ira Gershwin.
Were the broadway shows composed by George Gershwin popular?
George Gershwin wrote Porgy and Bess. Initially a commercial failure, it came to be considered one of the most important American operas of the twentieth century and an American classic.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about George Gershwin's broadway career besides Porgy and Bess?