The crossword solutions for the term 'Chicago or 'Philadelphia'' are SONG, a four-letter word. The two cities of Chicago and Philadelphia have a long history of musical influence. Chicago is known for its blues and jazz music, while Philadelphia is known for its soul and R&B music. Both cities have produced some of the most iconic songs in American music history. From Chicago, there is 'Sweet Home Chicago' by Robert Johnson, and from Philadelphia, there is 'Philadelphia Freedom' by Elton John. Both cities have also been home to some of the most influential musicians of all time, such as Muddy Waters and Billie Holiday.