Use a sentence to answer the question

The two pianist had a good marriage. They always were in a chord.
In one to two sentences, interpret the figure speech in the statement make sure to include the word or language, being used in the figure of speech, and explain the deeper meaning

The figure of speech being used in the statement is a pun. "In a chord" is a play on words, as it refers to both the musical term for harmonious sounds produced by playing multiple notes together on a piano, as well as the expression "in accord", meaning in agreement. The deeper meaning conveyed is that the two pianists had a harmonious and agreeable marriage.