Counting with an orchestra is a term used to describe the practice of counting off the beats of a song before it begins. Counting with an orchestra is often done by the conductor, who will count off the beats of a song in order to ensure that all of the musicians are playing in time. The term 'Count with an Orchestra' is derived from the name of the famous jazz musician Count Basie, who was known for his ability to keep a steady beat and count off the beats of a song.