Who said "There's a great American song waiting to be written"?

This quote is attributed to George Gershwin.

There's a great American song waiting to be written - George Gershwin

"There's a great American song waiting to be written"

George Gershwin Dreams

Jazz Composer Pianist American 1898–1937

"Life is a lot like jazz - it's better when you improvise"

"I frequently hear music in the very heart of noise"

"The real American folk song is a rag"

"True music must repeat the thought and inspirations of the people and the time"

"This is going to be a great show!"

"Dreams are what make life worth living."

"Never stop dreaming big."

"Dreams are what keep us going."