simplify this paragraph;
In this statement, the figure of speech being used is a pun on the word "chord," which typically refers to a group of three or more musical notes played together to create harmony. However, in this context, the pun is being used to imply that the two pianists always got along well and were in agreement with each other, creating a metaphorical harmony in their relationship. The deeper meaning here is that their partnership was strong, balanced, and mutually respectful, much like the harmonious blend of notes in a chord. This figure of speech cleverly plays on the musical profession of the pianists to convey a deeper message about the quality of their marriage.