To the average civilian ear, fire engine, police, and ambulance sirens sound much the same. But through this series of quizzes, you'll learn to identify the sirens that mark life in West Roxbury.
Listen to the attached audio clip and take the quiz at the bottom of the text. We'll post the answer to today's later in the week.
You can listen back to Sunday's siren at this link - and it was an ambulance.