Who said "The mark of a good musician is patience."?

This quote is attributed to Duke Ellington.

The mark of a good musician is patience. - Duke Ellington

"The mark of a good musician is patience."

Duke Ellington Patience

Jazz Composer Pianist American 1899–1974

"Music is my life, it's my soul, it's everything I do in this world."

"Do not fear mistakes. There are none."

"A wise man doesn't give the right answer, he poses the right question."

"There are simply two kinds of music, good music and the other kind."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."