Which trumpet valve goes where?
There are three valves, or pistons, on a trumpet; the first, second and third. The first valve is closest to the player holding the horn and the third valve is closest to the bell. The second valve is in-between the first and third. At the top of each valve is the finger button, which is screwed onto the valve stem.
How do the valves on a trumpet work?
The valves help you to fill the notes between the open notes by lowering the pitch of each open note. When a valve is pressed down, it increases the length of the trumpet by directing the air through the additional tubing on the valve block. There are three valves, each has a different length of tubing.