Why the Oboe Gives the Orchestra Its Note
Before a concert begins, an orchestra does something that may sound strange. A single note rings out from the stage, and then dozens of instruments join it, making a wide hum. This is the tuning of the orchestra, and it follows a careful order.
The first note usually comes from the oboe. The oboe is a thin wooden instrument played with a double reed, and it sounds the note A. Next, the other woodwinds and the brass add their A. Last, the strings tune to it, and each string player turns pegs or small screws until the sound matches.
Why the oboe? Its tone is clear and strong, so it can be heard over many other instruments. An oboe also holds its pitch well, because it cannot be bent easily as a string can. Strings often slip out of tune as the room warms up or a player moves. Starting with an instrument that stays steady gives everybody the same target.
Tuning matters because even a tiny difference between two instruments makes a wobbly, uneasy sound. When every instrument matches the same A, the music joins together. Then the lights lower, the conductor steps in, and the concert can begin.