Meaning: The music brought back memories.
Choice of Words: "Melody" is a series of musical notes that make up a tune. "Stirred" means to cause something to move or become active. "Memories" are recollections of past events or experiences. Together, "Melody stirred memories" means that the music evoked memories and recollections in the listener, bringing them back to mind and causing them to feel emotions associated with those memories.